A: ___ I phone you tonight? B: Yes, you ___ .
A) may / may
B) must / might
C) could / can’t
D) shouldn’t / shouldn’t
E) have to / had to

But I ___ stay in England for six months, and not for a fortnight as I had planned.
A) had to
B) have to
C) am able to
D) can
E) shall have


-I ___ draw a circle with a pencil only, and you? -Neither can I.
A) can’t
B) can
C) may
D) shan’t
E) couldn’t


Last week I ___ go to town on business trip as the Ministry of Education had asked me to
come.
A) had to
B) might
C) should
D) could
E) was able to



If one person is careless with a library book, then it ___ be read by others.
A) can’t
B) couldn’t
C) may
D) can
E) mightn’t


After a book is written, it passes through the heads of very many different workers. Each
worker works carefully, for there ___ not be any mistakes.
A) must
B) couldn’t
C) could
D) might
E) has to


He tried, but ___ persuade nobody.
A) could
B) couldn’t
C) can
D) might
E) won’t

A

B

b

a

e

a

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