There are ________ of students in our school, but only ______ are girls.
—Was Tom a little ill yesterday?—_______.
—Do you know where the twins are? —Yes. They _______ Fuzhou.
It’s raining heavily now. You’d better _______home.
— ____________we swim in that river? —No, you _______. It’s dangerous to swim there.
—Would you please tell me something about your travel in Sydney—____________.