-- Now the government is trying to solve the problem the school bus safety．
--- So we believe there will be fewer accidents in future．
| A．loudly | B．strongly |
| C．lovely | D．carefully |
Sally has been swimming ______ four hours.
| A．for about | B．since | C．about | D．/ |
Sam ______ coins since he was eleven years old, and now he has hundreds of them.
| A．collected | B．had collected |
| C．has been collecting | D．had been collecting |
I had a really hard time _____studying science this term.
| A．to | B．with | C．in | D．on |
Don’t ______ others when they make mistakes.
| A．laugh at | B．laugh with | C．laugh to | D．laugh |
---It’s Tom’s birthday next Sunday. What should I get for him?
----______________
| A．What about a bicycle? | B．Good idea. | C．Great | D．Yes, |