The United States （）a population of over 200 millions.
A: have had
B: is having
C: have
D: has
A: have had
B: is having
C: have
D: has
举一反三
- Not until the dedication of Yellowstone Park in the late nineteenth century（）a national park. A: the United States had B: did the United States have C: when the United States had D: the United States having
- Scientists think that there _____ life on Earth for millions of years. A: has had B: have had C: has been D: have been
- ()How long __________ you __________ in the United States? A: have; study B: had; studied C: have; studied D: had; study
- 7.The extraordinary Mexican()has delivered millions of illegal immigrants to the United States over the past 30 years.
- Youshould______beenherefiveminutesago. A: have B: had C: has D: having