Every time she tried to argue with her husband, she ended up _______ her eyes out.
| A．to cry | B．cried | C．crying | D．cry |
Don’t turn off the computer before closing all programs，________you could have problems.
| A．or | B．and |
| C．but | D．so |
I was glad to meet Jenny again，________I didn’t want to spend all day with her.
| A．but | B．and |
| C．so | D．or |
There’s no way of knowing why one man makes an important discovery________another man，also intelligent，fails.
| A．since | B．if |
| C．as | D．while |
I have heard a lot of good things about you________I came back from abroad.
| A．since | B．until |
| C．before | D．when |
She says that she’ll have to close the shop________business improves.
| A．if | B．unless |
| C．after | D．when |