Unit 1单元检测练习单词拼写1. His p_ is poor. I cant understand his words.2. G_ is very important for learning English .3. This is a s_ between you and me. Dont tell anyone else.4. They r_ their lessons before the exam last week. 5. I improve my English speaking kills by practicing c_ with friends 6. Please read the text a_, so all of us can hear you.7. With the money he saved, he build a _ (化学) lab fo