为什么不选c而选b啊? 它是对t积分应该要凑一个a啊?

为什么不选c而选b啊? 它是对t积分应该要凑一个a啊? 不应该选B吗?为什么选C呀T^ _____straight on and you'll see a church.You won't miss it.A:go B:going C:if you go D:when going我应该怎么确定它是祈使句 为什么不选BD呢 为什么选b而不选c? 为什么不选B而选C? 为什么这题选C而不选B? 请看图.为什么选B,而不选C.重力势能对其不是有影响吗? The dress ( )well and the color won't run.A.washes B.is washing C.is washed D can be washed为什么A而不选B啊 有机物不导电.这为什么对.CH3COOH有c应该是有机物.它是酸就应该能导电... 化学已知CO2和C的反应是吸热反应 CO2(g)+C(s) =可逆 2CO (g)答案选了B 为什么呢?既然它是吸热反应,那么AD不应该都是对的吗? C又错在哪里TAT?降低压强,反应不是向体积小的一方移动吗? 怎么会向 can,mustIt ____ be my uncle.He has gone to beijing.A.must B.mustn't C.can D.can't为什么选D而不选B? She didn't mind __ arriving late.为什么选B?A、I B、my C、mine D.myself 为什么选B而不选A? 为什么要选c而不选b, she used to ---her hair long A wear B have C has D grow 应该选B 请大家讲一下为什么不选D而选B —mum,will you take me to the park tomorrow?—If it____rainy.A won‘t B doesn't C isn’t D won't be提问：为什么选C而不选B,理由, 选择：I can't help but ( ) he was hiding something.A.to think B.think C.thinking D.thought为什么选B而不选D? 5.Bruce must have been in China for a long time,_____?A.hasn’t he B.mustn’t he C.Isn’t he D.wasmust have been 表示对过去事实的肯定猜测,本题为什么选A而不选D5.Bruce must have been in China for a long time,_____?A.hasn’t he He must have lost the key the day before yesterday,_____?A.must he B.hasn't he C.needn't he D.didn't he答案应该选D,为什么不选B?请说明原因,