The professor devoted all his life ____the treatment of AIDS.A to research B.in researching C.to researching D.at researching
His parents made a suggestion that hean hour for exercise every day.
asleepa knock at the door awakened her.
I don’t think they will help us, ?
You are requestedat an English evening to be held at the school auditorium on Friday, at 7.00 pm.
Suddenly there appeared a young womanin green.