下列单词中ai字母组合发音不同的选项是:___________ A. said B. rain C. main
I haven’t heard ________ Jim yet for a long time.
______I got up early this morning, I couldn't catch the early bus.
The environment in our city ____ greatly if we make every effort in the near future.
________ the girls in our class ________ over twenty.
We planted _______ trees last year.