I was just about ___ road ___ a ship came to us.
| A．traveling on; while | B．to travel on; while |
| C．traveling by; when | D．to travel by; when |
________ energy is generated from natural resources—such as sunlight, wind, rain, tides and so on.
| A．Recyclable | B．Non-renewable |
| C．Rechargeable | D．Renewable |
Effective measures have been taken to prevent _______pollution.
| A．exhausted gas | B．exhausting gas |
| C．exhaust gas | D．exhaustion gas |
-- I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
-- ______! I’m sure you’ll make it.
| A．Go ahead | B．Good luck |
| C．No problem | D．Cheer up |
After that, he knew he could ________any emergency by doing what he could to the best of his ability.
| A．get away with | B．get on with |
| C．get through | D．get across |
For him_____ stage is just _____ means of making a living.
| A．a; a | B．the; a | C．the; the | D．a; the |