Listening attentively in class and reviewing in time _______ a sure way to improve your learning, and this is especially true _______ it comes to standard tests.
#85963
A
is, when
B
are, when
C
is, while
D
are, as
推荐题目
Mr. Lee never said that he hated school when he was a child,       ?
#86252
A
was he
B
wasn’t he
C
did he
D
didn’t he
Tina used to __________a round face. 
#44065
A
is
B
have
C
be
D
has
--What is that on the table?  --Oh, a set of ___________ on the table.
#43644
A
key is
B
keys are
C
keys is
D
key are