I think this problem is much more difficult than that one,______?
—________ do you spell “book”?—B-O-O-K.
Liza speaks English very well,_______she doesn’t know Chinese.
There are _______ students in our class, twenty-two boys and eighteen girls.
—What’s this in English??—It’s _______ orange.
—Can she play the guitar?—No, she_______. It’s too hard for her.