It was the A/N1H1 epidemic ____ spread almost throughout the country ____ promoted the research and production of the flu vaccine.
A. that…that B. that…which C. what…that D. that…what
The traffic in Shanghai will be blocked and people will come to blows _____ the government plans in advance.
A. as long as B. unless C. even if D. since
— Where’s your assignment?
— ____
A. I had already handed it in. B. It was handed in.
C. It’d been handed in. D. It’s been handed in.
The customers objected ____ unfairly in the course of shopping.
A. to be treated B. their being treated
C. to being treated D. having been treated
A major issue was put forward by some representatives at the conference ____ the teachers in the remote areas were underpaid.
A. whether B. at which C. where D. that
The problem of carbon emission ____ at Copenhagen Summit has aroused the public’s wide concern.
A. discussed B. having been discussed
C. being discussed D. to be discussed
