Make sure the gas is turned off after a bath, which would ________ cause danger.

---It is what parents say and do that really matters in children’s character training.---________.

--- The earthquake last night was really terrible. --- ______, no people were injured or killed, and they escaped in time.

—Timmy, it is raining heavily out. Shall we stop here?—_______, we must finish this work today.

The lecture is so attractive that the audience are listening_________.