The dead rate is _____ pigs and recovery usually ______ within 7-10 days.A low in; occurs B.rich in;happens C.high in; came about D.poor in;took place
Your brothe__________be hungry now.-----he had lunch only two hours ago!
AIDS is said__________the biggest health to people in that area over the past few years.
With a lot of problems ________, the newly – elected headmaster is having a hard time.
Soon after getting off his horse, the man appeared at the second storey windows, ___________he could see nothing but trees.
Tom was very angry about ________ to Mary’s birthday party.