The wet weather will continue tomorrow, when a cold front______to arrive.

The wet weather will continue tomorrow, when a cold front______to arrive.

A.is expected

B.is expecting

C.expects

D.will be expected

答案及解析： A

解析：

a cold front是expect的逻辑宾语，故用被动语态，在主句为将来时态的句子中，时间状语从句时态用一般现在时态，故选A。