.By the time he comes back, I’m sure we ________ all these rooms of the lab. The

题型：不详难度：来源：

.
By the time he comes back, I’m sure we ________ all these rooms of the lab. Therefore, he doesn’t have to return.

A．have cleaned	B．will be cleaning
C．will have cleaned	D．have been cleaning

答案

解析

略

举一反三

.
______the zoologists tried to prove was that the photo of the South China Tiger had been staged or technologically dealt with.

A．That

B．Why

C．Whether

D．What

题型：不详难度：| 查看答案

.
It is written clearly in the requirements that all passengers______check onto board thirty minutes before the plane takes off.

A．may

B．can

C．will

D．shall

题型：不详难度：| 查看答案

.
．In my opinion, no search engine can __________ Baidu in search scope and speed.

A．compete

B．win

C．suit

D．equal

题型：不详难度：| 查看答案

.
______our national football team lost the game to a weak team as Syria by 2 to 3, I held no doubt about the new coach’s ability.

A．Until

B．By the time

C．Unless

D．After

题型：不详难度：| 查看答案

.
______from a Chinese character meaning people, the mascot（吉祥物）“Haibao” shows the character of Chinese culture.

A．Created

B．Creating

C．To create

D．To be created

题型：不详难度：| 查看答案