Trees in winter but in spring.
| A．not can be planted | B．can be planted |
| C．can’t be planted | D．can plant |
----Do you mind my taking the seat? -----_____ It’s for a sir named Jack.
| A．Not at all | B．Never mind |
| C．Of course | D．Better not |
－What do you think of my answer to the questions?
－Sorry. What’s that? I______ about something else.
| A．thought | B．had thought |
| C．am thinking | D．was thinking |
How long have you_________?
| A．borrowed the book | B．bought the bike |
| C．been back | D．joined the Party |
I became a teacher 15 years ____. I have been a teacher ____ 1997. I have taught here ___about 15 years .
| A．ago , since , for | B．ago , for , since |
| C．ago , before , for | D．ago , in , after |
Mr. Li _____Kunming . He _____ the city three times . This time he _____ Kunming for three days .
| A．has been to, has gone to , have been in |
| B．has gone to , has been to , has been in |
| C．has been in , has been to , have gone to |
| D．has gone to , has been in , has been to |