(二)用所给词的正确形式填空。 1 . The Chinese people are very ________ (friend) t o foreigners. 2 . I think it'll be ________(sun) this afternoon. 3 . David moved ________ (caution) forward. 4 . Without reform , social and economic problems can only be ________(bad) . 5 . The teacher gave them ________ (instruct) to arrive early tomorrow morning. 6 . Three people have been killed in a bomb ________(explode) in northwest Spain. 7 . One should have the ability to tell the ________(different) between right and wrong. 8 . He is a ________ (quality) teacher who is respected by his students. 9 . For many Americans the automobile is a ________(necessary) . 10 . He ________ (like) wearing a tie , so you will never see him in tie. 11 . You must look after yourself and keep ________ (health) . 12 . Excessive dosage( 剂量 )of this drug can result in ________(injure) to the liver. 13 . “Thank you.”is a polite ________ (express) which is widely used in English. 14 . He ________ (brave) went into the building house to rescue the baby. Everybody present praised him for his ________ (brave) . 15 . The scenery of Zhangjiajie is so ________(attract) that many tourists go there every year.