—I called you several times this afternoon. Why didn’t you answer the phone?
--I’m sorry. I ________ an important meeting then.
| A．is having | B．was having |
| C．will have | D．have had |
Great changes in China since 1978.
| A．took place | B．has happened | C．have taken place | D．happened |
I have ________ interesting book. _________ book is Millie’s.
| A．the, a | B．an, a | C．an, the | D．the, the |
The modern traffic has changed our lives .
| A．in a way | B．on the way | C．in some ways | D．by the way |
---Do you know __________?
---Sure, it’s a mouse.
| A．How it calls | B．how does it call | C．what it is called | D．what is it called |
If your homework _, your can watch TV.
| A．will be done | B．does | C．is done | D．has done |