21、_____ where to go, the foreign woman called 110 for help.

A．Having lost her way and not knowing           B．Losing her way and didn’t know

C．Lost her way and not knew                       D．Lost her way and not knowing

20、To ensure people’s happiness, the central government will not _____ to take the severest measures against the rising housing prices.

A．hesitate            B．mind            C．continue             D．forbid

19、I had meant to meet you at the station this afternoon but I was too busy, for I _____ a report which I had to hand in soon.

A．was writing           B．wrote        C．had written       D．have written

18、----- What beautiful flowers! Are they for me?

----- _____．I’m glad you like them．

A．You guessed it!                                  B．How did you know that?

C．Well done!                                         D．Got it

17、It is very funny that many people who lost weight gain it back after some time and end up back _____ they started.

A．when         B．after            C．where       D．since

16、In the future, _____ Google Inc．rules the entire universe, you won’t necessarily have to type anything to do a search.

A．when         B．where          C．which             D．that

15、Hearing something _____ downstairs, I opened the door and found my brother was playing with a ball.

A．kicking          B．to kick      C．being kicked          D．to be kicked

14、We get along quite well though there are quarrels between us _____．

A．now and then         B．here and there      C．at one time       D．up and down

13、Some people would rather ride bikes as bike riding has _____ of the trouble of taking buses.

A．nothing          B．none         C．some          D．neither

12、A powerful typhoon, Megi, struck Taiwan and caused rockslides, _____ dozens of tourists from Guangdong buried in ruins.

A．left            B．to leave        C．being left          D．leaving