I’m waiting for the mail. Do you know _____ it will arrive?

We don’t doubt _____ he will succeed in the research work.

LiMing speaks very good English _____ he were an English boy.

I still remember the day _____ I first came to college.

Living in the desert involves a lot of problems，______water shortage is the worst.

I usually do the washing up and leave the cooking to my wife，______she’s a better cook     than me．

Was it because she was ill______she didn’t go to attend the meeting?

Be quiet______you will wake the whole house!

It didn’t surprise us at all_____caused his success.

Napoleon’s story proves that to be a hero has nothing to do with size,______ with a smart mind and a brave heart.