- -- What do you think of your parents?--- They are always strict ____ our studies and they often make me ______ too much homework .
—What are those? —are their books.
—Is this _____ schoolbag? —No. It's _____.
Not only oral English but also written English _____ important.
—We’ll make a trip to Hainan Island next weekend. Will you go with us? —No, I can’t _____ it at present.
—How many students are there in the classroom? —_____ I don’t know where they have gone.