I’m old enough to wash clothes by myself．You can just wash ．

What shall we do this weekend?— You can go swimming, hiking, or ______ else you enjoy doing.

My uncle lives ______ 105 Youyi Street. [ ]

My pen pal Molly ______ to Xi’an to visit me next Thursday.

Are you interested in learning math?—Yes, but I’m afraid to _______ too much time on math.