Whenever you are in trouble ,don’t hesitate _____us for help.
| A．in asking | B．with asking | C．to ask | D．to asking |
Can you make sure _______ the gold ring?
| A．where Alice had put | B．where had Alice put |
| C．where Alice has put | D．where has Alice put |
It’s no good ________about his grades.
| A．worrying | B．to worry |
| C．to be worried | D．worry |
If he ________tomorrow, I could talk to him about it.
| A．comes | B．was coming |
| C．should come | D．would come |
Ann is said ________ research in Africa, and she will come back next month.
| A．to do | B．to be doing |
| C．to have done | D．done |
The old man lived in a house, in front of which _____ with a history of 100 years.
| A．does a tall tree stand | B．stands a tall tree |
| C．a tall tree is standing | D．a tall tree stands |