I study math by ____ lots of exercises.
#49928
A
did
B
doing
C
do
D
does
推荐题目
Lucy: Does Aunt Tara enjoy ? Mark: Yes. She has three dogs, two rabbits, four birds, and some fish in her house.
#51381
A
collecting dolls
B
keeping pets
C
visiting the zoo
D
working on the farm
-- Can we make this plan a week later?-- No, we can’t put off _______ it because the meeting is only two days from now.
#50827
A
to make
B
making
C
make
D
made