It is usually warm in my hometown in March, but it ______ be rather cold sometimes.

Thank you for all your hard work last week. I don’t think we ______ it without you.

That's surprising! It was an easy test and he ______ have passed.

.Imagine what today’s life would be like if Alexander Bell      the telephone more than 130 years ago!

If you are caught driving after drinking, the fine      be paid in cash according to the traffic rules.

If you ______ go, at least wait until the rain stops.

I ______ her, but I never could.

When we were young, every evening my brother and I____ stay at home waiting for our mother.

______I be free tomorrow，I could go with you．

You______be tired—you've only been working for an hour．