Tom can play ________ piano,but he can’t play ________ chess.
I think I have ________ my homework at home.
_________ September 21, 2011, I arrived at my school at around 7:50 a.m.
By the time I got up, my mother _______ .
Life is full ______ unexpected.
选择与画线部分意思相同或相近的单词。I don’t think you can finish the work by yourself.