The police were seeking more information to find out _____killed the rich merchant.
| A．who was it that | B．who it was that |
| C．it was who | D．who was it |
Of all the pens he tried, only one is_______.
| A．satisfy | B．satisfactory | C．satisfied | D．satisfaction |
The results of the medical checkup suggested that my father ______ in poor health, so the doctor suggested that he ______ smoking and take more exercise.
| A．was; gave up | B．be; should give up | C．should be; gave up | D．was; give up |
The element radium, ______ in the chemistry lab, gave off a blue light.
| A．discovering | B．to be discovered | C．to discover | D．discovered |
I feel it is your husband who ______ for the spoiled child.
| A．is to be blamed | B．is going to blame | C．is to blame | D．should blame |
The fruit ______ fresh in his fruit stand(货摊) sells well.
| A．looked | B．looking | C．look | D．to be looked |