I do every single bit of housework ___ my husband Bob just does the dishes now and then. 

There is still much to discuss；________，we shall return to this topic at the next meeting.

There is no doubt ____ John will come by bus.

The homework is not as heavy as ________he used to get. All________ he needs to do is improve English.

—Can you describe _____ it happened?　　　　—Yes, I was riding on my bike _____ a car knocked me down from behind.