Unit4 Astronomy：the science of the Stars
一：用适当的连词填空；
1. The fact is _______ I have lost his address.
2. Go and get your coat. It's _______ you left it.
3. I wonder _____ you are getting on with your studies.
4. The question is ______ can complete the difficult task.
5. He got caught in the heavy traffic. That was ______ he was late.
6. __________ leaves the room last ought to turn off the light.
7. __________ you have done might do harm to others.
