Scientists believe that it might be several years ______ the medicine can be used on human beings.

The more I think about him,the more reasons I find for loving himI did [ ]

Now many children are very _______, because their parents do everything for them.

下列各句中划线成语的使用，全都正确的一项是(　　) ①第二展厅的文物如同一部浓缩的史书，举重若轻地展示了先民们在恶劣的自然条件下顽强抗争、繁衍生息的漫长历史。②这部翻译小说虽然是以家庭生活为题材的，却多侧面、多视角地展现出那个时代光怪陆离的社会生活画卷。③毕业后他的同学大都顺理成章地走上了音乐创作之路，而他却改换门庭，另有所爱，一头扎进中国古代文化研究中。④就对后世的影响来说，我们一致认为《封神演义》虽然比不上《西游记》，但和《聊斋志异》是可以并行不悖的。⑤我国绘画史上有一个时期把王石谷等四人奉为圭臬，凡是学画，都以他们为宗，有的甚至照摹照搬。

－What were you doing when you heard Eastern Star went down in the river－I my homework.