Tony, be quiet, please! Your dad ______ on the phone.
#41658
A
talked
B
was talking
C
is talking
D
talks
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Tony          TV when his mother came in.
#39557
A
watch
B
watches
C
was watching
D
is watching
– Look at these factories. I hate them. They____ many rivers here. --Yes. Something ______ to stop the pollution.
#39701
A
polluted, must do
B
had polluted , must be doing
C
have polluted , must be done
D
were polluting, must be done
It        when I        my homework last night.
#40154
A
raining, did
B
rained, was doing
C
was raining, do
D
rains, was doing