_________it is true that a student’s most important goal is to do well in his or her studies, it doesn’t need to be the only goal.
| A．When | B．As | C．While | D．Before |
_________ the floor, I found his pen lying on the ground.
| A．While sweeping | B．While swept | C．If sweeping | D．If swept |
They urged that the library _________ open during the vacation.
| A．must be kept | B．is kept | C．would be kept | D．be kept |
Children under six are not __________to school except those of extraordinary intelligence.
| A．permitted | B．admitted | C．accepted | D．received |
When the headmaster spoke out his plan, the _________of the students in the class _________ against it.
| A．majority; were | B．most; were | C．most; did | D．majority; did |
Thanks to the advice _______ by the experts, we finished our task at an amazing speed.
| A．preserved | B．equipped | C．provided | D．directed |