(2013·安徽卷)From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
—Do you mind if I smoke here? —______ I feel a bit sick.
Some of the engines were not suitable for the work they were ________ for.
一What do you think of the film last night? 一To be honest, action films don’t ______to me much.
Mary as well as her elder sister who______ Chinese at university ______ gone to China for holiday.
31. We______ on the project for three hours. Let’s have a rest.