2019年mpacc考试英语真题——固定短语4

{01}In many schools, students are encouraged to _______ insurance to cover any problems like unexpected injuries．
A.try out
B.take out
C.work out
D.make out
解析：
本题选B。
{02}Shoo!All of you should ________ the changes while doing your experiment．
A.center in
B.concentrate your attention on
C.focus to
D.be concentrated upon
解析：
本题选B。