单选题We must find a way to cut prices ______ reducing our profits too much.
单选题Yellowstone National Park is one of the older parks in the U.S. It was established by Congress in 1872.
单选题She leaned ______ the wall while she was speaking to her friend.
单选题What is the main idea of the passage?
单选题I don"t think this food ______ my stomach.
单选题You ______ your own sandwiches. I have enough for two.A. couldn't have broughtB. shouldn't have broughtC. mustn't have broughtD. needn't have brought
单选题This new machine is technically far ______ to the previous type. A. superior B. junior C. senior D. equal
单选题I don"t like to disturb you, because you"re quite tired ______ today.
单选题(While) (remembered) mainly (for the invention) of the telephone, Alexander Graham Bell devoted his life to (help) the deaf.
单选题We can learn from the text that many newly married people ______.
单选题The investigation, ______ will soon be published, was made by Professor Smith. A. at which the results B. the resuhs on which C. of whose results D. whose results
单选题Paper making in China ________ from there to North Africa and Europe.
单选题He (invited) me (to go) to a party (and) I didn't want to (join him) that evening.
单选题Please be sure to telephone me the next time you ______.
单选题The general's command was that the soldiers ______ their fort and carry out more important tasks.
单选题Compared to other mammals, humans have a relatively long life ______.
单选题Speaker A: I wonder if Ann will come. It' s 8:30 now and she was supposed to come at 8: 00.
Speaker B :__________
单选题I caught a ______ of the car before it disappeared around the bend. A. glance B. glimpse C. look D. see
单选题The sun (gives off) light and warmth, (that) make (it) possible (for) plants to grow.
单选题According to tile passage, ______.