6. The number of foreign students attending Chinese universities _______ rising steadily since 1990.
A: ais
B: are
C: has been
D: have been
A: ais
B: are
C: has been
D: have been
举一反三
- The number of foreign students attending Chinese universities ______ rising steadily in the past ten years. A: was B: were C: has been D: have been
- The number of foreign students attending Chinese universities（ ）rising steading in the past ten years. A: was B: were C: has been D: have been
- The number of foreign students attending Chinese universities ________ rising steadily since1990.
- A number of students in this class ____to Beijing once . A: were B: have been C: is D: has been
- How long has Louis been living in England A: Since 1990. B: Since 1992. C: Since 1982.