We are doing much better______ English _____our teachers’ help. [ ]

My father usually the subway to work, but today he goes to work a bus.

My grandmother ______a lot of changes in Tianjin since she came here .

Who is ___ boy in a red cap? –He is Tom. He is good at playing ____ basketball.

Why don’t you take some exercise? Sitting before the computer is bad for your health. —________, but I have to finish my work on time.