The street was wet, _______ it rained last night.
举一反三
- The ground is wet, _________ it rained last night.
- 中国大学MOOC: It _______ rained last night, for the road is wet and slippery.
- 中国大学MOOC: -----It rained a lot last night. ----There was rain last night
- Since the ground is wet, it ______ last night. A: must rain B: must have rained C: had rained D: rained
- Since the ground is wet, it ______ last night. A: [A]must have rained B: had rained C: must rain