Helen, When did you moved here—I______ here since two years ago.

Do you enjoy ______ a volunteer– If you want, you’d better join us.

Things in your room are all over the floor. Be sure to__________before the guests__________.— No problem.

Tell Mary there is someone __________ for her at the door.

(2013·高考北京卷)I took my driving license with me on holiday，________I wanted to hire a car