--Mike, can you tell us something about our new teacher? -- Oh, sorry. I know nothing because I     _ him before.
#52710
A
saw
B
didn't see
C
have seen
D
haven't seen
推荐题目
He tries        English and he practices       English every day.
#61045
A
to learn, speak
B
learning, speaking
C
to learn, speaking
D
learning, to speak
Look! It ____ hard now. You’d better wait for a while until it stops.
#52314
A
rains
B
has rained
C
will rain
D
is raining