新概念英语第一册笔记86 What have you done? 你已经做了什么？

英语自学网

1 has
        2 \
        3 has
        4 has
        5 \
        6 \
        7 has
        aired/ cleaned/ opened/ sharpened/ turned on/ listened to/ boiled/ answered/ emptied/ asked/ typed/ washed/ walked/ painted/ dusted
        Air the room!
        I've already aired the room.
        I aired the room this morning.
        1 I've already cleaned my shoes. I cleaned my shoes last night.
        2 I've already opened the window. I opened the window an hour ago.
        3 I've already sharpened my pencil. I sharpened my pencil a minute ago.
        4 I've already turned on the television. I turned on the television ten minutes ago.
        9 I've already washed my hands. I washed my hands five minutes ago.
        Boil the egg
        My mother has already boiled the egg. She boiled the egg yesterday.
        11 George has already painted that bookcase. He painted that bookcase a year ago.
        8 Pamela has already typed that letter. She typed that letter this morning.