Historians are still mystified by the question____ some ancient civilizations disappeared suddenly in history.( )
A: that
B: how
C: that is
D: is how
A: that
B: how
C: that is
D: is how
举一反三
- 中国大学MOOC: Historians are still mystified by the question____ some ancient civilizations disappeared suddenly in history.
- No matter how wonderful the movie is, some people are still(critics)____ of it.
- Which of the following ancient civilizations is still developing: A: The Civilization of Ancient Egypt B: The Civilization of Ancient India C: The Civilization of China D: The Civilization of Ancient Sumer E: The Civilization of Ancient Maya
- How to deal _____ this difficult question? A: of B: with C: on D: to
- This is （）the question lies. A: what B: that C: where D: how