21.— This kind of cloth ____ well and____ long, besides, it’s cheap.— OK, I’ll take it

We haven’t come to an agreement We shall, ______, return to the discussion next week[ ]

Theses are his cousin’s first two __________paintings, which he likes very much.

I wonder people could grow plants on Mars.

__ is know to us all is that the oldworker, for _______ life was hard in the past, still works hard in hisseventies