The U.S. federal funding for research has been unsteady for years.
举一反三
- How many years has Richard been working in this company? ________ years.
- 青书学堂: ( )Although he's only 16 years old,______ he has been a college student for two years.
- How long has he been an auctioneer? A: He’s been an auctioneer for 33 years. B: He’s been an auctioneer for 13 years.
- Zhang Hanschool two years ago and hefor two years. A: leaves ; has gone B: left; has been away C: leaves; has been away D: left; has gone
- The hospital opened 5 years ago. It [u] [/u] for 5 years. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: opened B: opens C: has been open D: has opened