If more people give up driving cars,the air will get much _______ in a few days.( )
A.cleanB.cleaner
C.the cleanest
Our eyesight will become poorer and poorer ______ we keep playing with phones.( )
though
unless
if
Johnny made up his mind to give up smoking. He is thinking about ____.( )
how he can make it
how can he make it
how will he make it
"Yan Ning is one of 25 foreign associates(院士)in the US National Academy of Sciences."
"____ excellent she is!"( )
What an
What
How
There are 24 solar terms in a year. Grain Rain often starts in April, the ____ month of the year.( )
third
fourth
fifth
Today, all the erhu masters play and praise Erquan Yingyue. It ____ one of China's national treasures.( )
becomes
became
has become