Looking at the beautiful vase , he could not help saying, “_____”.
I dislike _______ when others laugh at me in publicorthink poorly of me behind.
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
. ------Don’t put the waste on the ground. ------Oh, I’m very sorry. I ____ the dustbin there.
------When can I see you, Mr Black? Three o’clock this afternoon? ------Oh, no. I _____ a meeting then.
You have to wait till tomorrow when our manager ____ back.