She looks very sad. I want to help her, but I just don’t know ____ to do it.
----How did he finish the work? ---- I hear that he did it __________
There are advertisements on Channel 7 than on Channel 8.
Kitty spends a lot of time after-school activities, but Linda spends little time ____it.
What about going to the park? ________.
His father looked_____at my medal. He looked_______.