He is the only one of the students in our grade who ___ a winner of scholarship for three years.

It is colder today than it was yesterday What terrible weather!

us lies the biggest room, ________with things like guns,dolls and old clothes.

I know nothing about the young lady ________ she is from Beijing.

I think _______ask Tim for some advice.—_______. Last time when I turned to him, he refused to help.