【推荐1】A back__________(injure) prevented active participation in any sports for a while. (所给词的适当形式填空)

【推荐2】Don’t play with the knife or you may do yourself an ______ (injure). (所给词的适当形式填空)

【推荐3】Not only he but also his parents ______ (injury) severely in the car accident yesterday.(所给词的适当形式填空)

【推荐1】There seems to be a strong _____(compete) for students to enter a key university. (所给词的适当形式填空)

【推荐2】I was going to Beijing or Xi’an but the ________ (attract) of the sea made me change my mind.(所给词的适当形式填空)

【推荐3】Sometimes，________ (imagine) is more important than knowledge during our studies. （所给词的适当形式填空）

【推荐1】This boy showed a strong ________(prefer) for building blocks (积木) when he was young. (用所给词的正确形式填空)

【推荐2】It is hard ___________(estimate) how many children suffer from dyslexia(诵读困难). Some _________(estimate) show next year’s budget could be $2.5 billion in the hole. (所给词的适当形式填空)

【推荐3】There are many   ________(variety) of roses in his garden. (所给词的适当形式填空)