1.In the rainforests we can't see everything ___（clear）.2.This is ___（popular）book in the school library.3.A computer is much ___(dear) than a radio.4.The ___（mainly） thing is to think it over first.
问题描述：
1.In the rainforests we can't see everything ___（clear）.
2.This is ___（popular）book in the school library.
3.A computer is much ___(dear) than a radio.
4.The ___（mainly） thing is to think it over first.
答
1.clearly
2.the most popular
3.dearer
4.main