It’s the protection for the trees ___ really matters, _____ how many trees are planted each year.

believe that ______ swimacross the river, but, in that situation, I ____ do that.

for a walk around our flat after supper, or_________ still in the park.

The Arabian Nights____ well known to English lovers.

It’s quite hot in the room. You’d better_____________the windows or the door.