题目内容
She didn’t know__________she could express her ideas clearly when she was invited to speak at the meeting.
| A．what | B．why | C．how | D．whether |
C
解析试题分析：句意：当她被请去会议上发言时，她不知道她怎样表达清楚。what什么；why为什么；how怎样；whether是否。根据题意，故选C。
考点：考查宾语从句连词的用法。
_____ he was very tired, he continued working in his office.
| A．Since | B．Although | C．As soon as | D．Because |
—Your grandparents were very great.
—Yes. They supported my father’s schooling ______ they were very poor.
| A．as if | B．even though | C．so that | D．what if |
—May I go swimming this afternoon?
— I'm afraid not _______ you have finished your homework.
| A．if | B．unless | C．because | D．but |
Help others whenever you can you’ll make the world a nicer place to live.
| A．and | B．but | C．or | D．unless |
--- This history book is of great value.
--- Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however.
| A．Nothing; unless | B．Few; till | C．Something; until | D．Little; since |
---Finish your homework, you can’t play computer games, Jim.
---All right, Mum.
| A．but | B．till | C．and | D．or |
It was a great day ,____ we did not enjoy it at the beginning.
| A．and | B．but | C．or | D．then |