2019年mpacc考试英语真题——连词1028

{01}He warmly congratulated them on _____ they had achieved in science and technology.

A.that

B.where

C.what

D.which

解析：略
本题选C。
{02}When solving the problem a second time, you’d better be more careful____you made a mistake.

A.in case

B.where

C.in which

D.that

解析：略
本题选B。
{03}___ he is going to do it or not does not matter .

A.Whether

B.If

C.When

D.Why

解析：略
本题选A。