The earth is the only home for us， so Green Hill and Clean Water is the true ．（ ）
| A． |
community |
B． |
discovery |
C． |
relation |
D． |
treasure |
Tom usually helps others with math problems and Mr. Li often praises him for it．
I agree．A student ______ is always helping others is worth praise．（ ）
A．whomB．whichC．whoD．whose
In the future，robots will do ______ jobs in place of people in order not to get us ______．（ ）
A．bored； boredB．boring； boring
C．boring； boredD．bored； boring
If you ______ able to come，I will show you around my hometown．（ ）
A．isB．can beC．will beD．are
The old building ______ down to make room for the city library a year ago．（ ）
A．was takingB．is takenC．was takenD．would take
Look，______ excited the boy is on seeing these cute pandas!（ ）
A．howB．how anC．what anD．what