Yesterday, when I went past the classroom, I _______ someone _______.
#42070
A
hear, singing
B
heard, singing
C
heard, sang
D
hear, sang
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—Mum, can I go to the zoo with Jack this weekend? —When your homework_______, you can. 
#41707
A
is done
B
was handed in
C
will be completed
D
had been finished
I know a little about Thailand, as I ________ there three years ago.
#40684
A
have been
B
have gone
C
will go
D
went
--- ________ did your uncle leave his home town?.--- Let me see. He _______ for nearly twenty years.
#39323
A
When; has left
B
When; has been away
C
How long; has left
D
How long; has been away
Don’t return the video to Peter, I _____ it.
#39086
A
don’t watch
B
won’t watch
C
haven’t watch
D
wasn’t watching