3. The number of new infections and people living with H.I.V. have both dropped.
举一反三
- The number of people living in the city ____ increasing. A: has B: have C: is D: are
- In which soap and where have the number of viewers dropped?
- On the lunar New Year’s day, many Chinese people often have quite a number of occasions to ________.
- My wallet is nowhere to be found. I（）when I was on the bus. A: must have dropped it B: must drop it C: should have dropped it D: have dropped it
- My watch is nowhere to be found. I it when I was on the bus. ( ) A: have dropped B: must have dropped C: must drop D: can’t have dropped