Peter is busy ___________ at school, but he never forgets __________ exercise every day.
#58784
A
work, doing
B
working, to do
C
work, to do
D
working, doing
推荐题目
No children   to watch this kind of movie because it is too scary.
#53000
A
should allow
B
should be allowed
C
shouldn't be allowed
D
don't allow
 --do you often hear Lucy ________in her room? -- Yes, listen! Now we can hear ________her in her room.
#55116
A
sing; sing
B
singing; singing
C
singing; sing
D
sing; singing
We don’t allow ______in the cinema. But you are allowed ______in the rest room. 
#55957
A
smoking, smoking
B
smoke, smoking
C
smoking, to smoke
D
to smoke, to smoke