It______last night, because the ground is wet. A: rain B: must rain C: must have rained D: rained

When did the unemployment rate begin to increase() A: Last April. B: Last May. C: Last August. D: Last October.

查找算法find( first, last, val)的参数中,first和last表示的范围用下列哪个区间表示比较合适？? [first,; last)|;(first,; last];|( first, last);|[first,; last]

They were in the zoo last week.改为一般疑问句 A: Did they in the zoo last week? B: They did in the zoo last week. C: Were they in the zoo last week? D: Not they in the zoo last week.

He asked me where I _____Mary A: last saw B: have last seen C: would last see D: had last seen

He has been staying at home ______ days. ( ) A: these all last few B: these last few all C: all these last few D: these last all few

When did the woman go to the Great Wall A: Last week. B: Last month. C: Last spring.

When did the man go to the Great Wall A: [A] Last spring. B: Last autumn. C: Last winter.

Julia didn’t have enough clothes （） a week. A: to last B: last C: lasted D: last for

How long will the sale last The sale will last ______ days.