If he had started at nine o’clock,he       have been in London by eleven o’clock.
#89650
A
must
B
may
C
ought to
D
has to
推荐题目
 Tony ________ full marks, but he was so careless as to make a spelling mistake.
#86660
A
could have gained
B
can have gained
C
must have gained
D
must gain
--- How much shall I pay for the phone call? --- You ________. This is free of charge. 
#87096
A
shouldn’t
B
can’t
C
don’t have to
D
mustn’t
— Did you scold him for his mistake?— Yes, but _____ it.
#90436
A
I’d rather not do
B
I’d better not do
C
I’d rather not have done
D
I’d better have not done