2019年mpa考试英语真题——连词576

{01}"Sorry, sorry...", he whispered, _____ talking to himself.
A.while
B.even if
C.as if
D.when
解析：
本题选C。

{02}It still puzzles today"s scientists _____ some mammals produce their young _____ others lay eggs to produce
their offspring (后代).
A.that; while
B.what; while
C.that; as
D.what; as
解析：
本题选A。