2019年mpacc考试英语真题——介词和介词短语2423

{01}28. Vitamin D helps our bodies make a special chemical, and this special chemical,        _______, affects our brains, making us feel happy.

A.in turn

B.in particular

C.in return

D.in short

解析：略
本题选A。
{02}The US is ___ number 7, while the UK is _____ the 13th position.

A.on; in

B.in; at

C.at; in

D.of; on

解析：略
本题选C。
{03}23．Mike must be angry with me, for he walked________me without even saying hello.

A.past

B.on

C.at

D.Over

解析：略
本题选A。