Public service ads, also PSAs, often _________ for free, _________ to educate people about health, safety or any other problem that affects public welfare.
| A．run; meant | B．are run; are meant |
| C．are run; mean | D．run; are meant |
You can imagine the difficulty they have ________ such a large population.
| A．fed | B．to feed |
| C．feeding | D．been fed |
____ apple fell from the tree and hit him on ______ head.
| A．An; the | B．The; the |
| C．An; 不填 | D．The; 不填 |
Now when people refer to England you find Wales______ as well.
| A．include | B．included |
| C．including | D．includes |
The teacher _____ the class______ five groups..
A divided...into B. separated...from
C. separated...into.. D. divided...from
---He has been working hard all the time.
---__________ he got full marks in the last English test.
| A．No wonder | B．No doubt |
| C．No need | D．After all |