-----How long do you think it will be _____man can finally solve the problem of cancer?------Well.it depends.
_____ has already been pointed out , grammar is not a set of dead rules.
Father went to his doctor for _____ about his heart trouble.
He is one of the teachers who _____ English but the only one of the teachers who _____ French in our school.
第二部分英语知识运用 (共两节,满分45分) 第一节单项选择(共15小题,满分15分) Your composition is fairly well done _______ some spelling mistakes.
The origin of ____ life on earth is ____ question that interests astronomers.(原创)