He seems poor, but I____ that he has quite a lot of money.[ ]

－Can I park mycar here , sir?－______. Yousee, there’s much traffic here.

______are! I’ve never seen so many beautiful flowers.

We couldn’t take a bus to go home because _________ ofus had any money in our pockets.

The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.