Our rooms are bigger than .
| A．yours | B．them | C．their | D．your’s |
It’s two and a half weeks since the exchange students __________ Wuxi.
| A．arrived | B．reached | C．have been in | D．have arrived in |
Little Tom has got a lot of birthday presents, but he isn’t able to take all of them ___.
| A．on time | B．at a time | C．at same time | D．from time to time |
We can have ___ bluer sky if we create ___ less polluted world.
| A．a. a | B．a, the | C．the, a | D．the, the |
--Why not join us in the game, Kitty?
---_____________, but I have to do my homework first.
| A． Let’s go | B．I’d love to | C．Yes, please | D． It’s a pleasure |
There was __________rain last night and it’s _________cold now.
| A．too many; much too | B． much too; too many |
| C．too much; much too | D．much too; too much |