Could you tell me ______?
| A．what do they do that for | B．why they are doing for |
| C．why do they do that | D．what they do that for |
Robots（机器人）are to do the same thingspeople.
| A．enough clever；as | B．clever enough；as |
| C．enough clever；with | D．clever enough；with |
We should spend as much time as we can English.
| A．read | B．to reading | C．to read | D．reading |
—Did you have nice holiday？
—Yes，it was best holiday I，ve ever had.
| A．the；the | B．the；a | C．a；a | D．a；the |
There are some trees on one side of the road and some factories on _____.
| A．other | B．the other | C．another | D．others |
all the students in his class，Xiao Ming writes.
| A．Of；very carefully | B．In；the most carefully |
| C．Of；most carefully | D．In；much more carefully |