1. — Can you come to my birthday party?
   — Sorry, I can't. I _________________. (得在家照料我奶奶). (have)
2. — Does he do exercise every day? -
    — Yes. It _________________ (跑步健身要花去他半小时) every morning, (take)
3. — Do you know anything about the singer?
    — Yes. I hear she _________________ (开始对唱外国歌曲感兴趣) at the age of six. (sing)
4. — Did you go to the movie last night?
    — Yes. But by the time I got there, the movie _________________ (开始十多分钟了). (for)
5. — I've waited here for a long time. It's too late.
    — Don't worry. You _________________ (直到有人叫到你, 才能离开). (until)
6. — What do you think of the hotel?
    — They _________________ (服务得够热情,使我们有宾至如归的感觉). (enough)
7. — Could you tell me _________________ (比赛是否因下雨而应该推迟)? ( put )
    — Sorry, I don't know.

1. 你还没有收到她的信吗?（hear from）
    ______________________________________________________________
2. 我正期待找到更多关于我的根源的事情。（look forward to）
    ______________________________________________________________
3. 这些年轻人几乎一点汉语都不会说，并且以前从没来过中国。（hardly, never）
    ______________________________________________________________
4. 在过去的l2个月里，他举办了3场大型演唱会（have had）
    ______________________________________________________________
5. 当我到达火车站的时候，火车已经离开了。（by the time）
    ______________________________________________________________

    We know the mosquito (蚊子) very well. Mosquitoes fly everywhere. They can be found almost all
over the world, and there are more than 2,500 kinds of them.    
     No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes, she. It's true
that the male mosquito doesn't bite (咬) and only the female mosquito bites because she needs blood to
lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she
bites. But if she doesn't like your blood, she will turn to someone else for more delicious blood. Next
time a mosquito bites you, just remember you are chosen. You're different from the other people!    
     If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly
and quietly that you may not feel anything different. After she bites, you will have an itch on your body
because she puts something from her mouth together with your blood. By the time the itching begins, she
has flown away.  
     And then what happens? Well, after her delicious dinner, the mosquito feels tired. She just wants to
find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, hundreds of eggs.

1. "itch" means ______ in Chinese.

A. 叫声  
B. 麻木  
C. 剧痛  
D. 痒

2. How many kinds of mosquitoes are there in the world?             

A. There are 2,500 kinds of them.    
B. There are more than 2,500 kinds of them.    
C. There are many kinds of them.    
D. There are less than 2,500 kinds of them.

3. "But the mosquito may decide that she loves you." "she" refers  to (指的是) ______.

A. the male mosquito         
B. the young mosquito    
C. the old mosquito          
D. the female mosquito

4. The mosquito is always looking for ______.   

A. people she dislikes    
B. things or people she doesn't want to bite    
C. things or people she wants to bite    
D. animals she doesn't want to bite

5. Which of the following sentences is true?  

A. The itching begins before the mosquito bites you.    
B. Mosquitoes need blood to lay eggs.    
C. You feel terrible when the mosquito bites you.    
D. All the mosquitoes like to bite people for blood.