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—I'm afraid not. We should keep _________.

A.healthyB.cleanC.quietD.warm

— She learnt it by _________.

A.yourselfB.youC.herselfD.her

—No, you _________clean it today. You can do it tomorrow.

A.mustn'tB.needn'tC.can'tD.shouldn't

—___________is on the teachers' desk, I put it there just now.

A.HisB.HersC.TheirsD.Yours

—Of course you can.

A.come outB.point outC.work outD.try out

— It's about 20 minutes' ride.

A.How longB.How muchC.How oftenD.How far

A.toB.forC.againstD.with

—Sure. It is big______________________for a third one.

—Sorry,we've got _____________________left，but we have a few for tomorrow.

— Mom, I need a rest. I’m really _________________ out after the basketball game.