Wearing a(n) expression in the class, he was scolded by the teacher.
______ that I was in trouble, Tom came to my aid without delay.
We climbed higher ______ we might see the scenes better.
John seemed puzzled about ______ the question meant.
―What do you think of your new Pad? ―Good. I don’t think I can find a ______ one.
—Shall we go for a drink at one o'clock this afternoon? —________.Will two o'clock be OK?