As a result of destroying the forest, ______ of animals ______losing their homes.

When you are planting trees, the trees ________ straight in the hole.

You’d better remember what I said yesterday, others will laugh at you. －Sure. I’ll do ityou told me. [ ]

Have you returned the book to the library _______? –Yes, I have ____ returned it.

Helen _______her keys in the office so she had to wait until her husband ___home.