two weeks (is not) enough for us to finish this task.we need( a third )week.

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• Two days_________ enough for me to finish the work.I need a third day.
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• 为什么答案是D（英语选择题）Two days are not enough for me to finish the work. I need _____day.A other B the other C the third D a third为什么不是C?
• two weeks (is not) enough for us to finish this task.we need( a third )week.
• two days ____enough for me to finish the work .I need a third day.
• two weeks ----enough for us to finish the work,and we need -----week A isn't a third B aren,t thir
• two weeks (is not) enough for us to finish this task.we need( a third )week.为什么第一个空是is 不是 are .
• two weeks ----enough for us to finish the work,and we need -----week A isn't a third B aren,t thir为什么选A 说理由A isn't.a third B aren,t .third 是 两空呀
• two days ____enough for me to finish the work .I need a third day.A is not B is C are not Dare 选择什么?为什么
• Two weeks is not enough for me to finish the work .I need ______ week .A.the other    B.a third              C.the third    D.other 详解
• 已知a、b、c为三个非负数，且满足3a+2b+c=5，2a+b-3c=1． （1）求c的取值范围； （2）设S=3a+b-7c，求S的最大值和最小值．
• 已知a、b、c为三个非负数，且满足3a+2b+c=5，2a+b-3c=1． （1）求c的取值范围； （2）设S=3a+b-7c，求S的最大值和最小值．