2.  My partner often ________ (提醒)me to do my homework. So I'm grateful to him.

单词拼写

1.  I don't mind _______ (道歉)to others if I make a mistake.

13. Life is like riding a bicycle.     your balance, you must keep moving.

A. Keeping       B. To keep

C. Keep       D. Having kept

12. He couldn't speak; he could only mouth several words which sometimes were hard    .

A. understand       B. understood

C. understanding    D. to understand

11. At last, we found ourselves at the foot of a hill with trees providing shade and     down to eat our picnic lunch.

A. sitting        B. having sat

C. to sit       D. sat

10. A terrible air crash accident happened over the Atlantic Ocean,      150 passengers.

A. killing       B. having killed

C. killed         D. to kill

9.-- Where is Tom? I have something important to tell him. 

―I last saw him     in the library reading.

A. sit      B. seated

C. seating    D. sat

8. Some  people  try  to   knock  me  down, only   me determined to do better.

A. to make     B. makes

C. having made   D. made

7.    to pass the 2014 College Entrance Examination made our whole family unhappy.

A. My son failed       B. My son's failing

C. My son failing      D. My son having failed

6. Once  again  I  found myself  standing at the crossroads, two paths    ahead of me.

A. lain       B. lying

C. to lie     D. lie