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 I study math by ____ lots of exercises.
#49928
A
did
B
doing
C
do
D
does
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The room isn’t big enough for us ________.
#49741
A
to live
B
to live in
C
live in
D
living in
 You are too tired, please stop _______.
#49070
A
to work
B
work
C
working
D
worked
 He used to       in the morning, but now he is used to       at night.
#50282
A
reading; read
B
read; read
C
reading; reading
D
read; reading
We should spend as much time as we can        English.
#50215
A
read
B
to reading
C
to read
D
reading
Mr Li taught me     in the river when I was a child.
#49893
A
to swim
B
swam
C
swimming
D
swims