（1）We should give the purse to the policeman .
What should we do when we get a purse (which/that) doesn't blong to us?
(2) Make.it is clean.
选择 A.out B .of C.sure D.up
make sure 确信；证实
make sure (that)it is clean.
确保它是干净的.只有这个能加that从句.
make up 弥补；组成；化妆；整理
make out 理解；辨认出；说明；填写；设法应付
make of 了解；用…制造