The parents were shocked by ________ news that their son needed ________ operation on his knee.
| A．a；/ | B．the; / | C．the; an | D．a; an |
I can hardly heat the radio. Would you please ______?
| A．turn it on | B．turn it down | C．turn it up | D．turn it off |
They made an important decision ______ the end of the meeting.
| A．in | B．by | C．on | D．at |
The boy was not allowed ______ his brother’s bike.
| A．to use | B．using | C．use | D．used |
He _____ tasted the mixture and give a smile.
| A．glad | B．gladly | C．was glad | D．was glad to be |
None of the students watched the teacher______.
| A．careful enough | B．enough carefully | C．carefully enough | D．enough careful |