2019年mpacc考试英语真题——介词和介词短语1641

{01} _____ Monday morning he wrote an article on grammar. 
_____ Monday morning he had written an article on grammar. 

A.By

B.On

C.At

D.／

解析：A.用on（at）＋过去时间状语,句子用过去时；by＋过去时间状语,句子用过去完成时.
本题选B。
{02}He has some trouble ______ his classmates, but he has no trouble ______ doing his lessons.

A.with; with

B.in; in

C.with; in

D.in; with

解析：      题意：他和他的同学有点纠纷，但是他在学习上没有问题。have trouble with sb. 和某人闹纠纷；have trouble (in)doing sth.干某事有困难。
本题选C。