—Who is the girl standing over there?— Well, if you _____ know, her name is Mabel.
It was not until midnight ______ they reached the camp site.
I like getting up very early in the morning because the morning air is so good ______.
You ______ be hungry already — you had lunch only two hours ago!
The dictionary still ______ where I ______ it last Sunday.
Teenagers ______ their health because they play computer games too much.
—Who is the girl standing over there?— Well, if you _____ know, her name is Mabel.—Who is the girl standing over there?— Well, if you _____ know, her name is Mabel.
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