When the teacher came into the classroom, all of us __________ the classroom.
A. are cleaning
B. were cleaning
C. cleaned
D are cleaned
Great changes ___ since he left his hometown.
| A．have taken place | B．have been taken place |
| C．were taken place | D．took place |
----________, everyone ! I have some good news to tell you.
---- What’s it ?
| A．Listen to | B．Hear | C．Hear of | D．Listen up |
A new pen for me by my aunt tomorrow.
| A．bought | B．will buy | C．was bought | D．will be bought |
Mum this time yesterday.
| A．cooked | B．was cooking | C．will cook | D．is cooking |
From the tower, you can see _______ of London _______ a nice day.
| A．many; in | B．most; in | C．most; on | D．many; on |