题目

用括号中所给词的适当形式填空，每空词数不限。 1. Tina is much ____     __ (athletic) than Tara. 2. Paul is a little ______ (thin) than Sam. 3. Let’s ___   ___ (make) a great turkey sandwich. 4. Mike __     ____ (not have) breakfast at home yesterday. 5. That sounds very _____     _ (bore). 6. When he ______ (be) three years old, Mozart started writing music. 7. The beautiful flowers make my English teacher ______ (happy). 8. There ______ (be) a sports meeting next week. 9. Parents ask their children ______ (clean) their room. 10. Jim’s uncle 一个蛋白质分子由2条肽链组成，共有266个氨基酸，则这个蛋白质分子至少含有的氨基和在合成过程中脱去的水分子数目分别是（   ）A．264和266B．2和266 C．264和3D．2和264