They wonder _______.
| A． |
if robots will think like a human in to years |
| B． |
if will robots think like a human in to years |
| C． |
when robots will think like a human in to years |
This is my friend，Jack Brown. His name is Brown.
A. first B. middle C. family
---Mum, may I stop ________ a rest? I feel tired.
A. having B. to have C. have
---Don’t you know Zhang Tao in my office?
--- _______ He is my friend.
A. Yes, I do. B. No, I don’t. C. Yes, I am
Computers first came into use ________.
A. in 1950s B. on the 1950s C. in the 1950s
We should know some ways to protect ourselves ____ the earthquake.
A. out of B. away C. from