英语单项选择试题By the end of the year 2050,air pollution ___a serious problem that endangers the health of the human race.A.will have become B.shall become C.will become D.shall have become本人刚考完的英语试题.望详尽解释,并

单项选择 yesterday he told me that he had met his uncle ( A at an end .B in the end C by the end D at the end 英语单项选择试题By the end of the year 2050,air pollution ___a serious problem that endangers the health of the human race.A.will have become B.shall become C.will become D.shall have become本人刚考完的英语试题.望详尽解释,并 单项选择：The price of the car increased_____10%_____of last month.选项：A.to;at an end B.to;at the end C.by;at an end D.by;at the end请问选什么?为什么? 英语单项The project______ by the end of 2004 has benefited 100,000 people in the city.The project______ by the end of 2004 has benefited 100,000 people in the city.A.completed B.having been completed 英语模拟题单项选择求大神 (ㄒoㄒ) 英语单项选择2 单项选择,英语, 英语,单项选择 单项选择 英语 单项选择英语 单项选择,英语 单项选择 英语 英语单项选择 单项选择英语 单项选择.英语 单项选择,英语 单项选择（英语） 英语单项选择求