people prefer HUAWEI phones， and about of them are adults．（ ）
| A． |
The number of； four﹣fifths |
| B． |
A number of； four﹣fifth |
| C． |
A number of； four﹣fifths |
| D． |
The number of； four﹣five |
Do you mind my opening the window？
．（ ）
| A． |
Of course not |
B． |
No，you don't |
| C． |
That's right |
D． |
It's a pleasure |
What can I do for you？
．（ ）
| A． |
OK |
| B． |
I want to buy a sweater |
| C． |
I'm fine |
| D． |
I'm afraid I can't |
What's the date today？
．（ ）
| A． |
It's Monday |
| B． |
It's June26th |
| C． |
It's cloudy |
| D． |
It's half past eleven |
What's the weather like today？
．（ ）
| A． |
It's Sunday |
B． |
It's sunny |
| C． |
I hope so |
D． |
Thanks |
Hello!Is that Mr Liu？
．（ ）
| A． |
Yes，I am |
B． |
No，I am not |
| C． |
Sorry，he isn't in |
D． |
I'm Mr Liu |