When a pencil is partly in water, it looks as if it___________.

If it ________ for the heavy rain then, we would have arrived here ahead of time.

The rules require that ______you only one guest to the dinner. But they requires______ 

We ____________ on the journey now but for this bad weather.

25. – Tom, it's too late. Our son ________ be back.– Don't be anxious. I dare say he ________ have some extra work to do.