Only after the woman had her own child _______ how difficult it was to be a mother.
| A．she realized | B．had she realized | C．she had realized | D．did she realize |
Mr. Smith’s decision to attend_________ceremony tomorrow can be seen as________gesture of his intention to improve ________the relationship.
| A．the, a, the | B．a, a, the | C．the, the, a | D．a, the, a |
You can’t complain of being lonely_______you don’t make any effort to communicate
with others.
| A．when | B．until | C．unless | D．once |
How long do you think _______ the computer company turns out a new product?
| A．it will be that | B．will it be until | C．will it be since | D．it will be before |
— Why do you look so angry?
— He insists on my presence here, but I can see it makes no difference ______.
| A．I am here | B．I was here | C．me to be here | D．my being here |
So quickly ____________ is a possibility today may be a reality tomorrow.
| A．are science and technology advancing that |
| B．science and technology advancing are that |
| C．are science and technology advancing that what |
| D．science and technology advancing what that |