It’s important _______ us __________English well.
We work together to achieve our common purpose: __________ world that is safer, cleaner and healthier than __________ one we are living in.
---Do you think it will rain tomorrow?---_______. It hasn’t rained for a long time. It’s too dry.
When I _______ the museum, I found that it _______.
---Your father never gets up late, does he?---______. It’s unusual for him to be late for work this morning.
---How was your journey to Canada?---It was wonderful. ________ meaningful experience it was!