He worked hard at his study. , he passed the exam easily.
| A．As a result | B．In addition |
| C．In order to | D．In order that |
We couldn’t see the road clearly _______ the heavy snow.
| A．because | B．because of |
| C．so | D．Though |
—I want to see the film. Would you like to go with me? —____
| A．Certainly, I like. |
| B．Sure, I’d love to. |
| C．Yes, I would. |
| D．No, I’d like to. |
Tom is __________than Sam.
| A．smart | B．smartest |
| C．more smart | D．Smarter |
I ________ an engineer when I grow up.
| A．am | B．was | C．will be | D．Are |
__________ important for children __________ by themselves.
| A．That’s; to learn | B．It’s; to learn |
| C．That’s; learning | D．It’s; learning |