i. 单项填空(共20小题;每小题0. 5分,满分10分)
从a、b、c、d四个选项中,选出可以填入空白处的最佳项,并在答题纸上将该选项标号涂黑。
1. in the
a. the; a b. /; the c. /; a d. the; the
2. one of the requirements for a fire is that the material _________ to its burning temperature.
a. is heated b. be heated c. would be heated d. shall be heated
3. compared with his sister, jerry is even more ________ to, and more easily troubled by, emotional and relationship problems.
a. skeptical b. addicted c. available d. sensitive
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