It's best not to run away from our problems．We should always try to them．（ ）
| A． |
solve |
B． |
take |
C． |
get |
It about eight minutes for the light to travel from the sun to the earth．（ ）
| A． |
pays |
B． |
costs |
C． |
spends |
D． |
takes |
We are happy to see our city is developing these years than before．（ ）
| A． |
quickly |
B． |
more quickly |
| C． |
very quickly |
D． |
the most quickly. |
Robots more heavy work for us in the future．（ ）
| A． |
will do |
B． |
did |
C． |
have done |
D． |
were doing |
It is duty to protect the environment．（ ）
| A． |
we |
B． |
us |
C． |
ours |
D． |
our |
So kind of you to give me a ride to the bus stop．
（ ）
| A． |
My pleasure． |
| B． |
Never mind． |
| C． |
It doesn 't matter． |
| D． |
That's nothing to do． |