【推荐1】He is so experienced an engineer that he is highly sensitive(敏感的) to any _________ sound in the machine. (usual)

【推荐2】(B) 根据句意，在答题卡上标有题号的横线上，写出括号内所给单词的适当形式。
1. How strange the boy is! He always answers questions in an _______ (usual) way.
2. The pink silk scarf is one of those ballet _______ (dance).
3. I _______ (simple) can’t believe the result of the game! Our school team should beat their school team.
4. The book you bought me is really _________(value). Thanks a lot!

【推荐3】He came home later than usual that day. That’s quite ________ (usual).

【推荐1】Lily is very ________ (友好的).

【推荐2】The watch is c______, but it goes very well.

【推荐3】It’s ________ (fair) to ask your parents to help you with the work.