It is reported that a kind of new smart phones can test the air quality（质量）around you．
__________fast the technology develops! （ ）
A．WhatB．What aC．HowD．How a
相关试题
It's raining outside．I forgot to bring ____ umbrella．
I've got one．You can use ____．（ ）
| A． |
my; mine |
B． |
me; mine |
C． |
my; my |
I have a toothache these days．I don't feel like eating anything．
You should go to see a ____．（ ）
| A． |
teacher |
B． |
dentist |
C． |
policeman |
What do you want to be in the future， Xiao Ming？
I want to be ____ doctor like Zhong Nanshan．（ ）
| A． |
the |
B． |
an |
C． |
a |
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