Would you mind my closing the window, please– _______. We need some fresh air.

High Senior 3 students are lucky to enjoy a______ long winter vacation, compared with those of other schools, some of whomhave to stay at school even during the Spring Festival.

If you don’t turn up by 8 o’clock, we’ll go ______ you

(2013·重庆模拟)—When did your brother begin to show his interest in medicine? —It was a Saturday　　　he noticed his classmate experimenting on a frog in the lab.

in the woods, the cottage was a good shelterfrom the enemies.