When you _____ your work,please check it before you hand it in.A.finished B.have finished C.willfinish D.are finished
问题描述：
When you _____ your work,please check it before you hand it in.A.finished B.have finished C.will
finish D.are finished
答
选B，完成式。
当你完成了工作，检查好，再交上去。
答
b
答
完全正确,放心使用：
B.have finished
答
check 在你将试卷交上之前，请检查一下。 check 希望能帮到你，不明please （check） your paper before you hand it in. 论文交上来之