—The similarities between social networks are striking.—That ________ come as no surprise，because they are all products of the Internet.
#62485
A
should
B
shall
C
may
D
must
推荐题目
－Is Mr. Li in his office ?－No, he __________ in the office. He’s ill in hospital.
#75928
A
must be
B
can’t be
C
should be
D
needn’t be
— If you listen to me, you ______ take a good rest at once.— OK, I ______ do so.
#62849
A
should; must
B
shall; will
C
must; would
D
may; can
If the green light doesn’t come on, you ______ go across the street.
#76761
A
must
B
needn’t
C
mustn’t
D
have to
—Look! A book is on the floor. Whose is it?—It ______ be Rick’s. It has his name on it.
#75808
A
mustn’t
B
can’t
C
must
D
need
---How did you do in the test yesterday? -----Not so well. I ______ much better but I misread the directions for writing.
#63231
A
will have done
B
could have done
C
must have done
D
may have done