Mary is a lucky girl and she is the only one of the students who______ been to Paris.
how to do the homework, I went to ask my teacher for help.
You’d better leave the windows _________ and the door ___________.
We should spend as much time as we _______ over our lessons.
It’s _______ much more than I ________ it.
She looked unhappy because she had made ________ mistakes in the English test.