--Why do you look pale today?--I was very ________my mother’s illness. I stayed awake last night.
---- I wonderyou will water this kind of flower. ---- Every other day.
Tom is good a studenthe is often praised by the teacher.
The girlis singing an English song in the next room is Tom’s sister.
is known to us all, he is an excellent student in our class.
This is the reason he was late for class today.