He is very serious. No one can make him___.
| A．laugh | B．laughs | C．to laugh | D．laughing |
—I knocked into a tree when I went to the bus stop for my friend.
—I suppose you _____too fast.
| A．had driven | B．are driving | C．drove | D．were driving |
this key is your mother’s.
| A．May | B．Maybe | C．May be | D．Can |
You don’t know ______ I want to see you again. It’s a year since I last saw you.
| A．how soon | B．how long | C．how much | D．how often |
---Where’s Li Hua?
---Look! He _______ tennis on the playground.
| A．plays | B．played | C．was playing | D．is playing |