智慧职教: There has been an increasing number of in primary schools in the past few years.
举一反三
- A recent study has found that the number of smokers______sharply over the past five years. A: is increasing B: are increasing C: has been increasing D: have been increasing
- There has been a big travel ()in the past few years. (booming)
- For the past ten years the number of babies born has been ______.
- There great change in our management over the past few years. A: is B: was C: has been D: have been
- Only in the past few years _______ to improve the living conditions in this area. A: something has been done B: there is something done C: has there something been done D: has something been done