It is usually not quite cold in this area in March, but sometimes temperature __________be very low.

You _____ phone him if you want to, but you _____! He will surely phone you.

---Did Mr. Zhu come to help you yesterday? --- Yes, but I would rather _____. He caused me a lot of trouble.

Most of the students felt rather disappointed at the English party. They say that it ______ better organized.

It is suggested that a doctor ____immediately.