Due to the unreasonable individual income _______, the gap between the rich and poor has become an outstanding issue.
、There is too much in the British Museum for us to ____________.
Listen! There’s a lot of noise from next door. They _____________ a party.
、Luckily, we’d brought a road map without__________ we would have lost our way.
The old couple don’t live with their children; they _________ independence(独立)more than anything else in the world.
Many a student ______ made that mistake before, which is another way of saying a great many students ________ made that mistake.