As there is less coal and oil, scientists are exploring new ways of making use of _____ energy, such as sunlight, wind, and water for power and fuel.
| A．primary | B．alternative |
| C．instant | D．unique |
----Do you mind if I use your bike? ----______.
| A．Yes, please | B．Of course, please | C．No, go ahead | D．Yes, you can use it. |
It was the first time that I ____the sports meeting with so large an audience
| A．had joined | B．have taken part in | C．have joined | D．had taken part in |
Have you seen Tom recently? I wonder ____ with his studies.
| A．how is he getting along | B．that he gets along well |
| C．how he is getting along well | D．if he is getting along well |
Lily has been in love with Tom ___ since she met him last year.
| A．even | B．ever | C．never | D．still |
Students should form the habit of ____ everything important in class. Which of the following can’t be put in the blank?
| A．putting down | B．taking down | C．setting down | D．tearing down |