Read the following paragraph and underline the topic sentences.G

Read the following paragraph and underline the topic sentences.
Good writers want to be correct. They know that if they use incorrect spelling, sloppy punctuation, erratic grammar and rough syntax they will destroy the effect of their writing...But profession writers never assume that correctness is enough itself. They want ti engage readers and keep them engaged.
【正确答案】：Good writers want to be correct.
【题目解析】：p142