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
You must ______the English course one month before it begins.
#52505
A
pay for
B
paid for
C
be paid for
D
be spent on
My grandma used to live in the country, but now she _______living in the city and likes the city life.
#55056
A
is used to
B
is used for
C
used to
D
uses to