---Could I go boating this weekend, Dad?---Yes, you ________. But you ________ come back before lunch.
#74541
A
could; must
B
can; must
C
could; should
D
must; should
推荐题目
-----Can I watch TV, Mom? -----No, you . You to do your homework first.
#76494
A
don’t; have
B
can’t; can’t
C
can’t; have
D
do; must
---________ we clean the classroom at once? ---No, you________. You ________clean it after school
#76372
A
Must, needn’t, can
B
Need, mustn’t ,may
C
Must, mustn’t, can
D
Shall, can’t , may
Cars play an important role in modern life, but they ______ also cause many problems like air pollution.
#63554
A
should
B
can
C
must
D
will
My grandfather us stories when I was young.
#77240
A
was used to tell
B
is used to telling
C
used to tell
D
used to telling