The secretary and manager ____very busy now.
A．is
B．are
C．was
D．were
答案：A
____________ monkeys can ____________ in the tree.[ ]
A. The, swing
B. Does, swing
C. The, swinging
为减少浪费，烹调用的残油可再倒入新油中，以便今后再用。( )
