4. To my mind, the government ___ take care of old people.
a)ought b) must c) need to d) may
5. What a pity John won’t come. He ___about the meeting beforehand.
a)should have been told b) should be told c)should been told d) should have telling
6. That __ be Charlie. He said he would be here about now.
a) might b) may c) must d) can