为什么要加beThere is said to be a great deal of oil in Africa

为什么要加beThere is said to be a great deal of oil in Africa 为什么it is said 后边要加that 英语there bethere are ten students taking part in the school sports meeting in our school 能分析下这个句子吗,为什么take要加ing He is said to be very good.这句话对吗,为什么TO后面要加be? 英语there bethere are ten students taking part in the school sports meeting in our class 这句话什么意思 能分析下这个句子吗,为什么take要加ing it is said that that was the beginning of raising silkworms1:it is said that 2:RAISE为什么加ING 【改错】It is said great biologist Darwin was a man with sense of humor.为什么改错时要在said 和 great之间加that ,句子又不缺成分? everything is ok为什么要加is what you said的said在这里是什么词性?是动词还是名词?如果是动词的话那么what you said sounds interesting sounds为什么要加s? i said that joining an english club is a good way should aways be.问为什么joining加ing 20为什么填is/are being said It is said that in Australia,there is more land than the government konws____.A what to do withB what to do with it选B 为什么要加it ? Because you said that we have a good relationship中为什么要加that 'You needn't have said that,' my wife answered.为什么need 后面要加have呢 ''what's happened to you?''the old man said to me为什么HAPPEN要加ED如果是过去式为什么要用IS，WAS是不可以缩写的吧 it is said that后加什么时态 it is said that后加什么词 I've heard it said that Elizabeth is a tough businesswoman.it 后面为什么不加is 如果把it 改为her