“We give him a book.” The structure (结构) of sentence is .
| A．S + V | B．S + V + O |
| C．S + V + IO + DO | D．S + V + DO + OC |
Dolphins are rare, but sometimes it is possible _______ them near here.
| A．to see | B．to look | C．seeing | D．looking |
I ____ have supper until my mother ____ back every day.
| A．won’t; come | B．don’t; came |
| C．won’t; comes | D．don’t; will come |
—_____ have you travelled abroad with your parents?—Only twice.
| A．How often | B．How soon |
| C．How long | D．How many times |
The stones _______ from the cormorants’ mouths by the fishermen.
| A．remove | B．removed |
| C．is removed | D．are removed |
We have to _____ the sports meeting till next week because of the bad weather.
| A．put off | B．go off |
| C．fall off | D．take off |