Not until he had left his friend _______ how important friendship was for him.
A．did he realize B．he realized C．had he realized D．he had realized
My father worked day and night. Otherwise, there ________ no one to support the family.
A．would be B．must be C．would have been D．must have been
The interviewer will begin to judge you as soon as he or she ________ you in the waiting room.
A．sees B．will see C．is seeing D．saw
When _________a career, you should consider all the aspects of a job.
A．choose B．choosing C．chose D．chosen
The living room is clean and tidy, with a dining table already _____ for a meal to be cooked.
A．reserved B．swept C．decorated D．laid
—What’s that noise, John?
—Oh, don’t you know that the school library ?
A．is rebuilt B．is being rebuilt C．was rebuilt D．has been rebuilt
