3. 例如= for example. as u saw, i wrote so much 'for exmaple'(例如) . I believe u know u should how to use it.
比如=such as,for example.
let's read some exmaples. In a dialogue,
exmaple one,
A---What sort of woman would u most like to marry with?(你 想娶 个 什么样的 女人?)
B---uh,let me see, i go for women of ur type. such as u. (我 想娶 你这样的,比如 你。)
exmaple two,
A---which colored tulips do your favor? such as white, pink or purple?
(你 喜欢 什么颜色的 郁金香? 比如,白色?桃红色?紫色?)
B---purple please,thank u!(紫色,谢谢!)
Besides, generally speaking, 例如 is more written. 比如 is more oral.
4.总要 = always or will.
总要 = always . for example,
When he writes, he always uses that pen.
(当 他 写字时,他 总要 用 那支 钢笔。)
sometimes, 总要= in the end , sth.will certainly happen. for example,
He's travelled a lot but he will certainly come back his hometown in the end.
(虽然 他 游历过 很多地方,但是 他 总要 回到 他的 家乡的。)
5.有所=Maple's answer.
所有=including all or everything. for example,
It's time to 12, all the bells ring.
(一到 十二点,所有 钟 都 响了。)