题目内容
I was about to give up my effort to solve a problem __________ a good idea struck me.
| A．when | B．while | C．until | D．before |
A
解析试题分析：考查连词：AB都有“当…的时候”，when表示时间点，而且和be about to连用，表示“刚要做…这时”，while表示时间段，until直到，before在…前面，句意：我刚要放弃努力解决这个问题这时哦想到一个好主意。选A。
考点：考查连词
Most probably it will be another 7 hours _____ you can have next meal, so each of you must have your stomach full.
| A．since | B．when | C．after | D．before |
The foreigner was talking to the children in the park ______ he was familiar with them.
| A．even though | B．in case | C．so that | D．as if |
— What did he think of the trip to Beijing last month？
— He had such a good time ________ he visited the Great Wall.
| A．until | B．that | C．where | D．when |
The boy was so tired that he fell asleep _______ his mother could take off his clothes.
| A．before | B．after | C．while | D．when |
Returning from Guilin, he told me about the scenery ________ interested him there.
| A．where | B．what | C．which | D．who |
Let children speak their own opinions, ______they are different from your own.
| A．until | B．unless | C．as though | D．even if |
______all of them are strong candidates, only one will be chosen for the post.
| A．Since | B．As | C．If | D．While |