(2013·高考新课标全国卷Ⅱ)Since nobody gave him any help，he________have done the research on his own.
#62474
A
can
B
must
C
would
D
need
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This book ______ , because his name is on the book.
#74799
A
can be Tom’s father’s
B
can’t be Tom’s father’s
C
must be Tom’s father’s
D
must be Tom’s father
—Do you know where Mary is? I couldn’t find her anywhere.—Well . She have gone far—her coat’s still here.
#63338
A
shouldn’t
B
mustn’t
C
wouldn’t
D
can’t
--Shall I take my swimming suit ?--No , you _____ . We will just go hiking in the mountain .
#74927
A
mustn’t
B
couldn’t
C
needn’t
D
can’ t