1.Please take what you like,you ___may not_____ eat too much.
1.请拿自己喜欢的,你就不会吃得太多.
A.may not B.would not C.must not D.can not
A C不必 D不能
2.A new technique __having been worked out______,the gross output increased by 20
percent.
运用了新技术以后,总产量增加了20%.
A.working out B.having worked out
C.having been worked out D.to have been worked out