Not until he went through real hardship ________the love we have for our families is important.
| A．had he realized | B．did he realize |
| C．he realized | D．he had realized |
No one knows when such a custom first _____.
| A．came into power | B．came into being |
| C．came true | D．came out |
The students pretended_______ attentively when the teacher came in.
| A．to learn | B．learning | C．and learned | D．to be learning |
________ he returns to his native land.
| A．It is long that | B．It is not before long that |
| C．It won’t be long before | D．It will be long until |
--- Hi, Torry, can I use your computer for a while this afternoon?
--- Sorry, _____________.
| A．it is repaired | B．it has been repaired |
| C．it’s being repaired | D．it had been reapired |
Washington, a state in the United States, was named _______one of the greatest American presidents.
| A．in memory of | B．by means of | C．instead of | D．in remembering of |