What at that time ? ---Playing football.
| A．did you do | B．do you do |
| C．were you doing | D．are you doing |
He hurried back home _________ his schoolbag.
| A．fetched | B．to fetch |
| C．fetching | D．Fetches |
When he saw a wallet on the ground, he ________at once.
| A．picked it up | B．gave it up |
| C．picket up it | D．put it up |
The train was late, ______ we had to wait for half an hour.
| A．because | B．or | C．so | D．But |
After a long walk, the old man ___________be tired now.
| A．can’t | B．must |
| C．has to | D．need |
—Which one do you _________, Jim?
— I don’t mind. Either will be OK.
| A．like | B．love | C．enjoy | D．prefer |