China is carrying the two﹣child policy to avoid population problem．
________．We hope it can work well． （ ）
A．How good is the plan!
B．How good plan!
C．How good the plan is!
With the help of Air Classroom， students_____ keep learning even with schools closed．（ ）
| A． |
can |
B． |
must |
C． |
should |
Drugs are harmful to people's physical and mental health． We teenagers must_____them．（ ）
| A． |
take care of |
| B． |
keep away from |
| C． |
get used to |
"Pingtang Bridge has the highest concrete bridge tower in the world．""______amazing it is!"（ ）
| A． |
How |
B． |
What |
C． |
What an |
As we all know， using public chopsticks______necessary when we eat with others．（ ）
| A． |
is |
B． |
are |
C． |
was |
After﹣school activities help students gain more skills and teach_____to care about others．（ ）
| A． |
me |
B． |
you |
C． |
them |