We are not allowed to laugh when we_____.( )
A.ateB.have eatenC.are eating
Study harder, you won't catch up with your classmates.( )
or
for
since
although
Each of us WeChat(微信) nowadays, even the old people.( )
plays
play
playing
played
There are about three students in our school.( )
thousands
thousands of
thousand
thousand of
What did you do last night, Grace?
First, I did my homework, and then I played piano for 30 minutes.( )
a
an
the
/
Mum, I have a bad headache. I feel terrible.
Oh, dear! You must get a cold. I have to take you to see .( )
a violinist
a doctor
a policeman
an engineer