—Do you know that Jack ______ a postman for about six years —Yes, I see.

单项选择题—What a fine day! Shall we go picnicking — ______ . But we need to be home before six o' clock for the football match.

单项选择题—Honey, let's go out for dinner. — ______ . I don't have to cook.

单项选择题I was ______ and all of my equipment ______ working well.

单项选择题He regards that book ______ one of the worst that he's ______ read.

单项选择题We' re so busy that no one in the office can ______ for any other work.