2019年mpa考试英语真题——动词的时态79

{01}Great changes ________ in our country during the past 20 years．
A.have happened
B.happened
C.have been happened
D.were happened
解析：
本题选A。
{02}We ________ with a number of plans and will give careful consideration to all of them．
A.have been presented
B.are presenting
C.have presented
D.presented
解析：
本题选A。
{03}He ________ the army for 8 years so he is an experienced solider now．
A.has joined
B.had joined
C.has been in
D.was in
解析：join是短暂性动词，不能与表示一段时间的词连用；既然是一段时间，多与完成时连用，故选C项。
本题选C。