Earth's climate _________ over the centuries.
A: will change
B: changes
C: changed
A: will change
B: changes
C: changed
举一反三
- 中国大学MOOC: 3. Earth’s climate changes over time — the last ice age is evidence of that — but it’s the rapid rate of change and the amount of the greenhouse gas carbon dioxide filling up the atmosphere that have scientists concerned.
- It’s high time that she __ __ her mind. A: changes B: change C: has<br/>changed D: changed
- Millions of years ago, changes in the Earth's climate caused animal and plant life to ______. (diversion)
- Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth’s _____ and its related effects.
- Global warming and climate change are terms for the observed century-scale rise in the ______ temperature of the Earth’s climate system and its related effects. A: highest B: lowest C: average D: common