We ________ see which way to go if the stars do not twinkle（闪耀）so.（ ）
| A． |
can not |
B． |
should not |
C． |
must not |
D． |
need not |
How can I avoid the illness， Sir？
_______a mask when going out and wash hands with soap．（ ）
A．WearsB．WearC．To wear
Our city， Shaoyang， is getting cleaner and cleaner day by day．
Yeah． We______a national modern， civilized hygiene （文明卫生） city．（ ）
A．createB．are creating
C．created
Don't forget to protect your eyes well____ you take online classes．
OK． Thank you， Sir．（ ）
A．ifB．thoughC．as if
A new airport will be built in Tantou， Longhui．
Good news! But a lot of good farmland______________．（ ）
A．will wasteB．may be wasted
C．has wasted
Well， I'm new in town．_______a bank around here？
Of course． It's just near Chengnan Park．（ ）
A．There isB．Is thereC．Is it