--- 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
推荐题目
He hesitated for a moment before kicking the ball, otherwise he      a goal.   
#86634
A
had scored
B
scored
C
would score
D
would have scored
—We weren’t sure which way to go.In the end,we turned right.—You  the wrong way.You     left.
#88966
A
had gone;must have turned
B
went;must turn
C
have gone;would have turned
D
went;should have turned
He commanded that all the gates      . 
#87592
A
should shut
B
would be shut
C
shut
D
be shut