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—Because the traffic was bad.

A.why did you come lateB.why you came late

C.why do you come lateD.why you come late

—_________I’m looking forward to it.

A.You bet!B.Never mind.C.Much better!D.What a pity!

—Sure. In July last year.

A.how waste sorting(分類) in Shanghai start

B.what did waste sorting in Shanghai start

C.when waste sorting in Shanghai started

—About one and a half hours.

A.How longB.How oftenC.How soon

A.reflectB.percentC.expert

A.pilotB.distanceC.climate

A.many grammarB.coffee wheelC.youth thumb

The children ________ ________ ________ ________more knowledge about drones.

She________ ________hang out with her friends.

I want to be an engineer when I ________ ________.