If we _____ take environmental problems seriously，the earth _______ worse and worse．（ ）
A．don't； won't beB．won't； isn't
C．won't； isD．don't； will be
﹣What would you like， meat or fish？
﹣ ． I prefer chicken．（ ）
| A． |
Either |
B． |
Neither |
C． |
Both |
D． |
Each |
﹣How often do you play tennis？
﹣Twice____week． And I often play it in sports center in our school．（ ）
| A． |
the；/ |
B． |
a：an |
C． |
an； the |
D． |
a；the |
As soon as she_______in Nanning， she will call you．（ ）
| A． |
arrives |
B． |
arrive |
| C． |
will arrive |
D． |
arrived |
Our teacher often tells us________in the river． It's dangerous．（ ）
| A． |
not swim |
B． |
not to swim |
| C． |
to swim |
D． |
swimming |
The woman in a hat is______aunt．（ ）
| A． |
Jack and John |
B． |
Jack's and John |
| C． |
Jack's and John's |
D． |
Jack and John's |