---What is the boy doing?
---He _____________ happily.
A swims B swam C has swum D is swimming
We should go to school at 8:00 o'clock _________school mornings．
| A．on | B．in | C．at | D．of |
English is___ useful language because people in many countries are using it.
| A．a | B．an | C．the | D．/ |
— I believe this is the best movie of the year.
— Well, . Anyway, the ending is OK.
| A．that’s a good idea | B．that may not be a good idea |
| C．I’m not sure if you’re right | D．I think you’re right |
It’s really the Greens devote all their money to helping the poor .
| A．generous for | B．generous of | C．generous that | D．generous to |
—I think I’ve got a bad cold, Doctor, Shall I take some medicine?
—No need. Your body itself is able to the virus. Just drink more water and rest.
| A．catch | B．fight | C．lose | D．Hide |