I _______ spend the Saturday afternoon with my old friends in the zoo, but they did not come.
— Why on earth didn’t you answer the door? — I’m terribly sorry, but the telephone _______, too.
Mr. Brown doesn’t feel at _______ease for the time being for _______ little money the present job brings him can hardly support his extended family.
一I just can’t stop worrying about the result of my medical examination.一_________. There’s nothing you can do now but wait.
Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.
Students are required to go out in couples, especially in the evenings, with friends ______ they get into trouble.