---The fire was finally __________. Unfortunately, 10 people lost their lives. --- I hope the accident like this __________ happen.
---A: Sorry, I didn’t return your book on time.---B: _______.
---A: Sophia, your handwriting is really beautiful. I love it.---B: _______.
---I called you at 4:00 yesterday afternoon, but nobody answered.---Sorry, I ______ with my friends at that time.
The WHO has given some advice on to prevent us being infected(感染)with H7N9.
When the parents arrived at the hall, the students _______ their projects.