Work harder, _______ you will get more grades in the coming exam.
| A．and | B．so | C．or | D．but |
I’m going to ______ a new hobby. I want to learn how to take photos.
| A．take down | B．take up |
| C．turn down | D．turn on |
Robots are ______ do the same things as we do.
| A．enough clever to | B．clever enough to |
| C．too clever to | D．so clever that |
Tigers wait ______ it is dark, then they go out to find their food.
| A．though | B．as | C．because | D．until |
The woman became famous ______ the new song.
| A．because | B．when |
| C．because of | D．as long as |
—Excuse me, Mr. Green. How can I my spoken English?
—You can join an English club.
| A．send | B．read | C．tell | D．improve |