John, look at the time._____ you play the piano at such a late hour?
| A．Must | B．Can | C．May | D．Need |
You may give this message to _________ is at office.
| A．who | B．whom | C．whomever | D．whoever |
You may have one of these; in other words, you have ______ you choose.
| A．whichever | B．what | C．no matter what | D．no matter which |
They say in many western countries a large number of beef cattle ________.
| A．are raised | B．is raised | C．is risen | D．rise |
Jenny ______ with him at that time, for I was having dinner with her in my home.
| A．can’t have been | B．mustn’t have been |
| C．must be | D．may be |
Some people believe that giving gifts is one way ____by others.
| A．to love | B．love | C．to be loved | D．is loved |