Different hypotheses have been put forward to explain why UFOs exist.
A: sentence
B: comments
C: conclusions
D: theories
A: sentence
B: comments
C: conclusions
D: theories
举一反三
- Many theories have been ______ as to why some women suffer from depression. A: referred to B: put forward C: rest assured D: left out
- Such a proposal must have been put forward by people with limited ______. A: overview B: overlook C: outline D: outlook
- If it snowed tomorrow, the match ____. A) would not put off B) would be put offC) should have been put off D) would have been put off A: would not put off B: would be put off C: should have been put off D: would have been put off
- 中国大学MOOC: Since hypotheses are often put forward in scientific writings, conditional clauses are in wide use in EST.
- Your<br/>choice ___ A: To explain why he had difficulty finding the library. B: To explain why he couldn't have borrowed library books in June. C: To explain why he doesn't yet have a library card. D: To explain why he needs assistance in locating a book