下列单词中ai字母组合发音不同的选项是:___________ A. said B. rain C. main
We know that about seventy percent _____ the earth _____ covered by water.
you drive,you will be.
The policeman asked the child ________ cross the street ________ the traffic lights turned green.
— I have great _______in finishing the work by myself. Could you help me? — No problem.
-How well she sings! -Yes, she has a very sweet __________.