2019年mpacc考试英语真题——连词387

{01}Why did they keep trying _________ they must have known it was hopeless?

A.if

B.because

C.when

D.whether

解析：这题考查连词的用法，when表示“既然”句意是：既然他们已经知道是无望了，为什么还要一直尝试呢？选C。
本题选C。
{02}He had his camera ready ________ he saw something that would make a good picture.

A.even if

B.soon after

C.in case

D.so that

解析：连词辨析，四个选项分别表示，即使虽然、不久以后、万一假使和以便所以。根据题意他已经准备好的相机，以便拍下他看到的一些好图片。故选C。
本题选C。