Daqing is in ________ north of China and it has ________ population of more than 2.7 million.（ ）
| A． |
a；a |
B． |
a；the |
C． |
the；a |
D． |
the；the |
---_________ the door, please.
---Please come in. The door________.
| A．Be open; opens | B．Be open; is opening |
| C．Open; is opening | D．Open; is open |
I don’t think it is a good idea, ________ ?
A. isn’t it B. is it C. do we
Some of the apples are bad,but I believe the rest sweet.
| A．taste | B．tastes | C．are tasted | D．is tasted |
--- Can you tell me where Tom is? --- He ________ on the playground.
A. plays B. playing C. is playing
-- _______ bad weather! -- So it is.
A. What B. How C. What a