2019年mpacc考试英语真题——介词和介词短语2075

{01} We have _______ books in our library.

A.plenty of

B.great many

C.a great deal of

D.great number of

解析：短语辨析。plenty of大量，很多，修饰可数名词； great many 前面缺少冠词；a great deal of大量的，修饰不可数名词； great number of修饰不可数名词。句中books为可数名词复数，故选A。
本题选A。
{02}. The magician picked several persons from the audience and asked them to help him with the performance.

A.by accident	B.on occasion
C.at random	D.on an average

解析：略
本题选C。