He was born ______ October of 1879 in Germany.[ ]

Some students often drop litter carelessly in our school. What can we do?- We can _______ some signs to remind them not to do that again.

What do you think of the two backpacks? —______ of them are very nice.

The bookshop near our school_______ the whole day on Sunday.

Whose book is this?—It must belong_________.