We were about to climb up to the top of the mountain _____ it began to rain heav
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We were about to climb up to the top of the mountain _____ it began to rain heavily. |
A. as B. while C. when D. since |
答案
举一反三
The reason why he failed is _____ he was too careless. |
A. because B. that C. for D. because of |
— Why did he come back? — It is ______ he forgot to take his umbrella with him. |
A. for B. as C. since D. because |
He thinks I have spoken ill of him, ____ I"m always speaking well of him. |
A. when B. and C. while D. on the contrary |
John seems a nice person, ____ , I don"t trust him. |
A. even though B. even so C. therefore D. though |
Someone called me up in the middle of the night, but they hung up _____ I could answer the phone. |
A. as B. since C. until D. before |
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