---I often chat with my friends on the Internet.---You are so smart! Will you please tell me ________?
#49449
A
how to do
B
how to do it
C
how to use
D
when can I use it
推荐题目
---I’m too busy________ to my family often. --- Why not call them instead ?
#50313
A
writing
B
write
C
written
D
to write
When I got there ,I saw some boys _____ on the playground.
#50714
A
playing
B
played
C
to play
D
was waiting