He waited ________ the volcano became quiet and he was able to return two days later.
| A．when | B．before | C．as | D．until |
She worked hard ________ everything would be ready by the time he came back.
| A．since | B．so that | C．as if | D．unless |
________ he studies hard, he will never pass the examination.
| A．If | B．Unless | C．Even if | D．Even though |
I criticized him, you know, not ________ I hate him but ________ I love him.
| A．because; because | B．because; for | C．for; because | D．for; for |
I had no sooner got back to the kitchen ________ the door-bell rang loud enough to wake the dead.
| A．when | B．than | C．as | D．while |
________ you understand this rule, you’ll have no further difficulty.
| A．Once | B．Unless | C．As | D．Until |
________ the man grew older, he lost interest in everything except gardening.
| A．With | B．Since | C．While | D．As |
You may borrow this book ________ you promise to give it back.
| A．in case | B．so long as | C．as if | D．even if |
I have been keeping that photo ________ I can see it every day, as it always reminds me of my college days.
| A．which | B．where | C．whether | D．when |
Doing your homework is a sure way to improve your test scores, and this is especially true ________ it comes to classroom tests.
| A．as | B．since | C．when | D．after |
The roof fell ________ he had time to dash into the house to save his baby.
| A．as | B．after | C．until | D．before |
Tom make up his mind to get a seat for the football match ________ it means standing in a queue all night.
| A．as if | B．as though | C．even if | D．whatever |
________ I had walked for six hours, I was tired out.
| A．After | B．Before | C．When | D．As |
One of the men present held the view ________ the book said was right.
| A．what that | B．what | C．that | D．that what |
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