2019年mpa考试英语真题——动词的时态54

{01}This instrument is used ________ machines.
A.checking
B.to checking
C.to check
D.to be checked
解析：be used to do＝be used for doing被用来干……．
本题选C。
{02}I have no idea of ________ it.
A.to do
B.how to do
C.what to do
D.to doing
解析：
本题选B。
{03}The houses ________ are for the old people and the construction work will start soon.
A.having been built
B.to be built
C.to build
D.being built
解析：
本题选B。