写理由1.I had no idea how to do it.I tried to stay positive and persevered ____ I finally found the solution.A.and B.until2.With the problem ___ (solve)A.solved B.is solved3.When they need advice,they don't usually go to the people they know.____ many of them write letters to newspapers and magazines .A.Instead B.but4.I like the clothes there,___ they look very beatifulA.for B.because
写理由
1.I had no idea how to do it.I tried to stay positive and persevered ____ I finally found the solution.
A.and B.until
2.With the problem ___ (solve)
A.solved B.is solved
3.When they need advice,they don't usually go to the people they know.____ many of them write letters to newspapers and magazines .
A.Instead B.but
4.I like the clothes there,___ they look very beatiful
A.for B.because
1.B. until
2.A.solved
3.A. Instead
4.A. for
记得采纳哟
1a 根据语义util不合适，and表示顺延，我努力保持冷静，终于我找到了解决方案
2a with sth done/doing 表示伴随状态，sth 与动词间关系 如果是主动用doing 被动用done 明显问题是被解决的 所以用solved
3a instead表示 相反的含义
4 这个题比较难，逗号不是问题，because前也可以有逗号，for也可以链接句子。because用于直接原因，比如我饿了because我没吃饭 而for用于补充说明，比如昨天一定下雨了，for地是湿的。个人认为这个是直接原因用because
1. A and 表示顺接下来。
2. B 过去分词表被动，此处只是一个结构，而不是句子，with后面不能跟句子。
3. A 与前面所说相反，代替的是。
4. A 补充说明原因。because 前不用逗号。for 加句子表示判断依据或者说补充说明原因。
1A and表示上下衔接。
2A solved 是形容词,(定语)，修饰problem。
3A but一般用在同一个句子中，instead可以用于两个句子中。
4B for不能连接句子，because可以连接句子。
1B until 直到,不能再用and,前面有一个了
2A solved 过去分词形式的形容词,被动含义,介词结构做状语
3B instead放在句首要用逗号隔开的
4A because原因状语从句的话,那个逗号就多余了