Our school appeals to the students to _________ at least an hour every day to take exercise in order to raise learning efficiency．
| A．set aside | B．pick out |
| C．take up | D．keep back |
. ___________ anything about the accident, he went to work as usual..
| A．Not known | B．Known not | C．Knowing not | D．Not knowing |
. The next morning she found the man ___________ in bed, dead.
| A．lying | B．lie | C．lay | D．laying |
. There was terrible noise ___________ the sudden burst of light.
| A．followed | B．following | C．to be followed | D．being followed |
. The secretary worked late into the night, ___________ a long speech for the president.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
. “Can't you read?” Mary said ___________ to the notice.
| A．angrily pointing | B．and point angrily | C．angrily pointed | D．and angrily pointing |