--- 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
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I ________ sooner but I didn't know that they were waiting for me.
#86541
A
had come
B
was coming
C
would come
D
would have come
______ for the fact that his father is general manager of the company, he would never get the job.
#86716
A
Had it not been
B
Were it not
C
Had not it been
D
Were not it
The book I bought from the bookstore isn’t here. Who __________?
#89207
A
could have taken it
B
must have taken it
C
might take it
D
should take it.
If Sanlu Group     melamine to the milk,the babies     too much from kidney stone.
#87595
A
didn’t add; would not suffered
B
hadn’t added; wouldn’t have suffered
C
hasn’t added; wouldn’t have suffered
D
hadn’t added; would have suffered