The car rushed into the river. The driver _____ get out, but the passengers were drowned.
A.was able to B.could C.might D.would
Let’s go out for lunch, _____ we?
A.will B.should C.shall D.would
Make a mark _____ you don’t understand.
A.until B.unless C.where D.as
Few people paid full attention to their health conditions _____ they were seriously ill.
A.when B.if C.until D.before
John thinks it won’t be long ______he is ready for his new job .
A.when B.after C.before D.since
_____ he came to study in the university, he has made much progress in the study of English.
A.While B.When C.Since D.After