Jack wasn’t saying anything，but the teacher smiled at him________he had done something very clever.
| A．as if | B．in case | C．while | D．though |
“I would never advise anyone to _______ a great opportunity,” she said, “but going to the right school for you is the most important thing.”
| A．set about | B．deal with | C．take after | D．turn down |
A Christmas tree is ______ sign that can only be understood as far as ______ certain cultural understanding is concerned.
| A．the, / | B．a, the | C．a, a | D．the, a |
Unlike the earth, Mars is too cold and Venus is far too hot _______ there to be any life.
| A．as | B．so | C．like | D．for |
It's known to all that large quantities of TV and Radio programs in China were produced
_________ people’s concern over edible oil last year.
| A．to raise | B．raising | C．raised | D．having raised |
--- A robot dog provides you with unconditional love, gentleness and undemanding attention.
--- _____ Does it do what every small dog is supposed to do?
| A．That’s reasonable advice. | B．Isn’t it a good idea. |
| C．Do you think so | D．I can’t agree more. |