Mrs Smith had to ______ her father day and night because he was seriously ill.A. look at B. look like C. look after
______ you have nothing important to do, why not come with me to the cinema?
I think ______ necessary ______ to take more exercise.
What did your mother do ______ the market last Sunday?
______ number of the students in Class 1 ______ forty-four.
You _______ go far if you need help with your homework.