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—White.

A. How B. What color C. What D. What’s

—____

A. No, it is B. No, it isn’t C. Yes, this is D. Yes, it isn’t

A.on B.in C.by D.at

---If it________, I__________.

A. doesn’t rain; go B. won’t rain; will go C. don’t rain; go D. doesn’t rain; will go

A. to stop to have B. to stop having C. stop to have D. stop having

a ping－pong ball he has .

____________________________________________

-- A teacher.

A. to be; grows

B. to be; grow

C. to do; is growing

A. so; to B. too; to C. so; that D. such; that

A. in B. at C. for D. /

一To protect our health and memory.

A how we should prevent B. why should we prevent

C. why we should prevent D. whether we should prevent