Look! The farmers are still working _____ the heavy rain.[ ]

Tom, why did you make no reply to me when I called your name in the street just now?—Sorry, Jim, I_______ to my wife on the phone.

Our teacher told us light (光) _________ much faster than sound .

Is this your pencil? -Yes, it’s _. Look, here is No. 5.

What _____ sports do you like?