At the meeting they discussed three different________to the study of mathematics.
| A．approaches | B．means |
| C．methods | D．ways |
The teacher always tells her students that only if _____ hard ____ achieve success.
| A．do they work, will they | B．do they work, they will |
| C．they work, will they | D．they work, they will |
Obviously the measures taken by the local government have _____ the solution to drinking water problems in this region.
| A．contributed to | B．referred to |
| C．turned to | D．devoted to |
Could you drive me to the bookstore at noon if _____?
| A．it's convenient to you | B．you are convenient |
| C．it's convenient of you | D．you will be convenient |
_____ I see the photo, I will always think of Mr. Li, who once was very strict with us.
| A．Now that | B．Even though |
| C．The first time | D．Every time |
I don't understand what the engineer means, but I’ve got ____ rough idea of ____ Project plan.
| A．the; a | B．不填； the |
| C．the；不填 | D．a; the |