There are 40 boys here. Some are from China, _______ are from Japan.

— Mary, is that umbrella ______?— No. It belongs to Jane. 

—Which sport do you like better, swimming or running?—________ of them.I like horse-riding.

－Are the keys yours?－No, they aren’t _____. I think they’re Jason’s.

--Is this your e-book? ---No, ________ is on the teacher’s desk.