---Look! What a nice and clean toilet!
---Yes. It ______ every morning.
| A．is cleaned | B．has been cleaned |
| C．is being cleaned | D．was cleaned |
A: Would you like to fly kites with me , Tom?
B: I’d love to , but my mother isn’t at home, I ______ look after my little sister.
| A．must | B．can | C．may | D．have to |
He _______ to Beijing in 2008, He _______ there for more than 5 years.
| A．has gone, has been | B．has gone, went |
| C．went, has gone | D．went , has been |
_____ a smile on his face, he came into the classroom.
| A．Have | B．Has | C．There is | D．With |
A: Hey, man. You can’t cross the street now. You have to wait _____ the traffic lights turn green.
B: Oh, sorry and thank you.
| A．when | B．after | C．until | D．while |
A: Have you got any books on computers? I want to borrow _______.
B: Yes, Here you are, but you must return _____ by Friday.
| A．one, one | B．one, it | C．it, one | D．it, it |