2019年mpacc考试英语真题——介词和介词短语2272

{01}You should keep an eye ______ him, for I have lost faith ______ him.

A.in; on	B.on; in
C.at; at	D.for; for

解析：考查短语：keep an eye on 注意，关注，lose faith in 对什么失去信心，句意：你应该关注他，因为我对他失去了信心。所以选B。
本题选B。
{02}It was too hard for the firefighters to get close to the burning building．All their attempts to rescue the people trapped were           .

A.in vain

B.in return

C.in place

D.in danger

解析：略
本题选A。