题目内容：
There are 20 blanks（） in the following passage. For each blank there are four choices marked A．, B）, C．and D．on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on the Answer Sheet with a single line through the centre. It’s an annual back-to-school routine. One morning you wave goodbye, and that __71__ evening you’re burning the late-night oil in sympathy. In the race to improve educational standards, __72__ are throwing the books at kids. __73__ elementary school students are complaining of homework __74__. What’s a well-meaning parent to do? As hard as __75__ may be, sit back and chill, experts advise. Though you’ve got to get them to do it, __76__ helping too much, or even examining __77__ too carefully, you may keep them __78__ doing it by themselves. “I wouldn’t advise a parent to check every __79__ assignment,” says psychologist John Rosemond, author Of Ending the Tough Homework. “There’s a __80__ of appreciation for trial and error. Let your children __81__ the grade they deserve.”
Many experts believe parents should gently look over the work of younger children and ask them to rethink their __82__. But “you don’t want them to feel it has to be __83__,” she says.
That’s not to say parents should __84__ homework—first, they should monitor how much homework their kids __85__. Thirty minutes a day in the early elementary years and an hour in __86__ four, five, and six is standard, says Rosemond. For junior-high students it should be “__87__ mom than an hour and a half,” and two for high-school students. If your child __88__ has mom homework than this, you may want to check __89__ other parents and then talk to the teacher about __90__ assignment A．very
B．exact
C．right
D．usual
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