---We _____ gas. I’m afraid we can’t go much further. ----I know there’s a gas station ahead. Sure it will last us till we get there.
Try not to cough more than you can _______ since it may cause problems to your lungs.
— 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.