Ⅰ.单句语法填空
1．The heat was ________ (unbear)—almost 125°F even in the shade of a cactus(仙人掌)．(2016·浙江，完形)
2．They had little respect ________ their grandparent.(2016·全国Ⅰ，阅读B)
3．It is always ________(crowd) with customers at meal times.(2016·全国Ⅰ，短文改错)
4．The discussion will very soon turn into ________ argument.
5．Other forms of parental involvement，including volunteering at school and ________ (observe) a child's class，also fail to help.
