一I’m sorry! I would have taken him to hospital if I had known he was seriously ill.一But ______ .
______ a little earlier, you could have caught the last bus.
People all over the world have a dream ______they will always live a peaceful life.
The researchers found clear and convincing evidence _________ happiness is the key when it comes to better health and longer lives.
I have no doubt in my mind_____ they will be happy to accept the job.
The teacher left word with our monitor ___________ she would explain the problem again next time.