Mary couldn’t go to the cinema with us because she had to _____ her little brother.A. look for B. look after C. look at D . look into
—Excuse me. What did you say you would like to do, Miss White? —I said I’d better go back to the office. I ______ somebody this afternoon.
We __________ our breakfast. We __________it at school at 6:30.
The students are clever. They have no problems _____ out the math problem.
—Do the dishes,Tom, or I will tell Mom! --Mind your own_____,Mary!
I think this problem is much more difficult than that one,______?