This is the biggest laboratory ___ we have every built in our school.

A. didn＇t I

B. didn＇t you

C. hadn＇t you

D. will you

A. in which they were

B. as they were

C. here you were

D. here it was

A. in which

B. that

C. where

D. on which

A. Seeing; frightened

B. Seeing; frightening

C. Seen; frightened

D. To see; frightening

A. how did they get to the city

B. what did they get to the city

C. how they got to the city

D. what they got to the city

A. have read

B. had read

C. should have read

D. am reading

A. The person

B. Anyone

C. Who

D. Whoever

A. set out

B. set off

C. set about

D. set down

A. went

B. must go

C. could go

D. go

A. What do you think we should do

B. Do you think what do we should

C. What do you think should we

D. Do you think what should we do