高手看过来：请问答案并说明为什么I will give a talk tomorrow,but I don’t know___.I will give a talk tomorrow,but I don’t know___.A.what to say B.how to sayC.what can I say D.how can I say

高手看过来：请问答案并说明为什么I will give a talk tomorrow,but I don’t know___.I will give a talk tomorrow,but I don’t know___.A.what to say B.how to sayC.what can I say D.how can I say i can never forget the day ______ we worked together请高手帮忙把空中所有可能的答案都写上,并说明为什么可以互换,感激不尽! 选择：i have a bike. it's___older one than mike's. A / B . the C .an D. a翻译句子,并说明为什么选择某个答案.谢谢了,高手们! 请说明答案的.并说清楚为什么 请问第三题,并说明为什么? 英语高手们看过来、、、很简单 I ___ (not go ) much farther before I caught them up.请问高手,横线上填什么为什么?答案是didn't go,为什么? 英语高手这里看 I am thirteen years old.变一般疑问句 并英语高手这里看 I am thirteen years old.变一般疑问句 并回答 6.I was ______ last year,and this year I am _______.A.thin;thin B.thin;thinner C.thinner;thinner明天要交了!求各位高手帮我解答并说明为什么要选这个答案的道理,好的会继续加分!对了,还有几道题：7.These shoes are 看过来,我需要你的答案 看过来,看过来. 英语高手看过来 an umbrella framework agreement 翻译 连在一起看,并说明解析, 连在一起看,并说明解析, 英语大神看过来 为什么pokopang进不去阿 I like _______(swim).So_______my brother. 望高手指教,并说出答案. 请问如何用matlab求解随机过程的均值和方差已知：r=2S+N(Wi^2+Wq^2)±2(√SN)(Wi+Wq) i,q下标r^2=4SN(Wi+Wq)^2±4(√SN)(Wi+Wq)[2S+N(Wi^2+Wq^2)]4S^2+4SN(Wi^2+Wq^2)+N^2(Wi^2+Wq^2)^2用matlab编程就均值和方差 燃着的酒精灯不慎打翻,为什么用沙土盖灭是错的?为什么用湿抹布盖灭是对的?请高手给出这两个问题的答案,并说明理由