2019年mpa考试英语真题——非谓语动词351

{01}When ________, the water will become vapour．
A.heated
B.heating
C.heats
D.to be heated
解析：
本题选A。
{02}________, the experiment will be successful.
A.If carefully doing
B.If it done carefully
C.If carefully done
D.If doing carefully
解析：
本题选C。
{03}Judged by his ________ look, he must have met with ________ problems.
A.puzzled
B.puzzled
C.puzzling
D.puzzling
E.puzzled
F.puzzling
G.puzzling
H. puzzled
解析：
本题选C。