Curious about the world around him, my son__ __ask me endless questions when he was young．
#63640
A
could
B
might
C
should
D
would
推荐题目
All passengers______go through safety check before they take a plane.
#74193
A
can
B
may
C
must
D
ought
He _____ be really difficult at times even though he ,generally speaking, is a nice person.
#63426
A
can
B
should
C
shall
D
must
Jack his pet dog every day. The dog must feel sad when he’s alone all day long.
#75030
A
should walking
B
should to walk
C
had better walk
D
had better to walk
—Must I finish the exercise this afternoon?—Yes, you ______, but you ______ finish it now.
#77433
A
must, mustn’t
B
must , don’t have to
C
may, needn’t
D
may , mustn’t