Egg prices usually ________ in spring when they are most plentiful.A．are
题型：不详难度：来源：
Egg prices usually ________ in spring when they are most plentiful.| A．are dropping | B．drop | | C．have dropped | D．will drop |
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答案
| B |
解析
| B 考察时态。句义：春天，鸡蛋供应很充沛，价格通常会下降。由句义和时间状语usually可知，选择一般现在时。 |
举一反三
I ________ for Beijing next Saturday. Do you know when the earliest plane ________ on Saturday?| A．am leaving; takes off | | B．Leave; takes off | | C．leave; is taking off | | D．am leaving; is taking off |
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I won"t buy this iPhone unless the price ________ to under 2,000 yuan. | A．reduces | B．will be reduced | | C．has reduced | D．is reduced |
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A recent survey shows the number of people who shop in stores ________， while far more are shopping online.| A．decrease | B．decreases | | C．is decreasing | D．are decreasing |
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．The sweater ________ easily; isn"t it suitable for a person as lazy as you? | A．is washed | B．was washed | | C．washes | D．has washed |
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Allen has decided that he will be an engineer by the time he ________ twenty.| A．had been | B．is going to be | | C．will be | D．is |
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