No matter how bright a talker you are, there are times when it's better ________ silent.
—You don’t look well. Are you ill? —No, the mid-term exam is coming and Ireading until midnight.
Have a good look round the room to make sure you ______ everything.
Tom has formed the habit of jogging_________ the tree-lined avenue for two hours every day.
—How do you find your classmates? —Most of them are kind, but ____ is so good to me as Peter.
I have offered to paint the house in exchange for a week’s ____________.