.
— Have you thought of a theme for your poster yet?
— No, I ______ a lot about it, but I haven’t decided.
| A．will think | B．have been thinking | C．had thought | D．was thinking |
John has done nothing but ___ for the police.
| A．sending | B．to send | C．send | D．that to send |
Did you feel your should __ by his hand?
| A．touch | B．touched | C．to touch | D．to be touched |
I suddenly felt something cold ___ my hand.
| A．touch | B．touched | C．to touch | D．to be touched |
The young trees require ___ carefully.
| A．to look after | B．looking after | C．look after | D．looking for |
She kept me ___ for a long time.
| A．to wait | B．wait | C．waited | D．waiting |