5. China has made great progress in the sun’s rays as a source of energy.
| A．harness | B．harnessing | C．harvest | D．harvesting |
This kind of clothing material, ________soft and smooth, sells well.
| A．feeling | B．felt | C．being felt | D．having felt |
— I’ve told Nancy many times about the meeting, but she still forgot it!
— I understand. Actually, anyone ______ be very forgetful at times.
| A．must | B．should | C．ought to | D．can |
The small window in the wall could ______ some light into the room.
| A．admit | B．hold | C．host | D．replace |
As we know, _______ medical examination will help us find out health problems as early as possible.
| A．normal | B．general | C．regular | D．common |
Some exercises appear to be ______ ones you have done, but on ______ second thoughts, you’ll find that they’re different.
| A．/; the | B．the; / | C．the; a | D．/; / |