If we earlier, we couldn’t be waiting here in a queue.
A. have started B. started C. start D. had started
Our country should set up more national parks animals can live freely.
A. when B. which C. where D. whose
— Can the project be finished as planned?
— Sure. it completed in time, we’ll work two more hours a day.
A. Get B. To get C. Getting D. Got
Don’t litter in the street in Singapore, you could be arrested.
A. or B. and C. but D. so
In the past several weeks, many cities in Northern China from heavy fogs and severe cold.
A. had suffered B. have been suffering C. were suffered D. suffered
she was out of the room, he took a quick look at the papers on her desk.
A. If B. While C. Though D. Unless
