That man ______ be my English teacher. He has gone to Canada. A. needn’t B. mustn’t C. can’t
—_________? —It’s Monday, the 14th.
—How many birds can you see in the trees? —I can see ______ birds.
______ junk food is unhealthy food, ______ lots of kids like eating it.
I study _____ my math test ______Tuesday afternoon.
There’s ____ in the book, so no one is interested in it.