8.It was essential that the application forms ____ back before the deadline(截止日期).
.[A] must be sent[B] would be sent[C] be sent[D] were sent
题 9
9.We ____ our breakfast when an old man came to the door.[A] just have had[B] have just had[C] just had[D] had just had
题 10
10.She never laughed,____ lose her temper.[A] or she ever did[B] nor did she ever[C] or did she ever[D] nor she ever did