______ young man standing there looks strong and healthy; however, as_________ matter of fact ,he has a serious disease.　　　　　　

Tom isn’t _____ home, he is _____ his classroom.

is the weather in Beijing now? ——It’s ____________.

Sam, my iPhone is in my bedroom. Could you ____________ it for me? — No problem.

Dad, when shall we go to visit my grandpa?—Grandpa is very busy at present．We’ll go to see him whenever __________.