I had hardly sat down_____ the telephonerang

have no idea what life would be like without water. The underlined part means “_________”.

That tests can actually give measurement of thelanguage skills of the students_______ by many teachers.

October 1, 1949 was the day ________ the People’s Republic of China was founded．

Thedisappearance of dinosaurs made _______ the evolution and dominance of mammalson the earth