Tom hid himself behind the door, _______ he rushed out to scare his mother.
| A．which | B．where | C．from which | D．from where |
The results of the experiment proved to be very good, _________ was more than we expected.
| A．which | B．what | C．that | D．this |
Overloaded with work, many doctors now get far less sleep than they _________.
| A．shall | B．should | C．may | D．might |
In the traditional Chinese calendar, each year _________a name of 12 kinds of animal.
| A．gives | B．is given |
| C．has given | D．has been given |
The teacher had intended not to tell the students but his remark _________the answer to the question.
| A．put away | B．put out | C．gave away | D．gave out |
_________ in heavy school work, most senior three students have no free time to do what they want.
| A．Buried | B．Having buried |
| C．Being buried | D．To be buried |