—Everyone in my class passed the exam.
—Oh, really? It ________ difficult.
| A．can’t have been | B．needn’t have been |
| C．must be | D．mightn’t be |
---In the past ten years, there have been many changes in family life.
--- Are these changes ______?
| A．better or worse | B．for the good or for the bad |
| C．for best or for worse | D．for the better or for the worse |
His sister had become a teacher , ______ was what he wanted to be.
| A．who | B．whose | C．that | D．which |
They ______ on the program for almost one week before I joined them, but still no good results _______ so far.
| A．had worked ; come out | B．have worked ; came out |
| C．had been working ; have come out | D．have been working ; have come out |
My money ______ . I must go to the bank to draw some of my savings out before I’ve ______ in hand.
| A．has run out ; none | B．is running out ; none |
| C．has been run out ; nothing | D．is being run out ; nothing |
When lost in work , ______ he often was , he would forget all about eating and sleeping.
| A．what | B．as | C．just like | D．so |