He _______ have completed his work；otherwise, he wouldn’t be enjoying himself by the seaside.
| A．should | B．must |
| C．wouldn’t | D．can’t |
The doctor has worked with patients of this kind for eight years, so he knows what ________ in his job.
| A．expected | B．to be expecting | C．expects | D．to expect |
—Who telephoned you just now?
— don’t know. I was about to answer the phone when it ________.
| A．rang up | B．rang off | C．hung on | D．rang back |
He recommended a reporter to us who has ________ outstanding talent for writing and is known for his sympathy for ________ poor.
| A．an; the | B．an; 不填 | C．不填；不填 | D．the；the |
This printer is of good quality. If it ______ break down within the first year, we would repair it at our expense.
| A．should | B．would | C．could | D．might |
Nobody believed his reason for being absent from the class ______ he had to meet his uncle at the airport.
| A．why | B．because | C．where | D．that |