2019年mpacc考试英语真题——介词和介词短语2129

{01}We are doing much better ______ English _______ our teacher"s help.

A.in, at

B.at, in

C.in, with

D.with, with

解析：略
本题选C。
{02}  
As is known to us, theory is based on practice and     servers practice.
A.by chance  B.in turn   C.in return  C.by turn
解析：略
本题选B。