3个句子，中译英

1.直到20世纪初，口试才出现（not...until,come into being)
The oral test didn't come into being until the early 20th century.
2.随着印刷技术的改进，连环画越来越精彩，吸引了各年龄层次的读者（with...,so...that)
With the improvement of printing technique, serial pictures are/comic book is so brilliant that they/it attract/attracts readers of all ages.
3.除文字外，人们可以凭借卡通表达感情（by means of,other than)People can express their emotions by means of cartoon other than of words.

the oral test has not come into being until the beginning of 20th century.

with the development of the printing technology, comic books becomes so wonderful that more and more people begin to fall in love with it.

people could express their emotions by means cartoon other than words.

其实这几个句子可以有很多不同的翻译，只是按照括号里的就限制了，感觉像是在造句。

以上仅作参考。