做某事是方便的"。

　　9．Success consists ________the ability to continue efforts through failures.

　　答案：in　句意：成功在于历经失败却持续努力的能力。consist in "在于"。

　　10．This job doesn't pay well, but it'll ________(rough) cover your daily expenses.

　　答案：roughly　roughly "粗略地"，在此处修饰动词cover，应用副词。

　　Ⅱ.单句改错

　　1．The old man has been fired and now a young man takes place.

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　　答案：takes后加his　take one's place "代替某人"，相当于take the place of sb.。

　　2．When first was introduced to the market, these products enjoyed great success.

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　　答案：去掉was　前一句子为状语从句的省略形式，当状语从句的主语与主句的主语一致或主语为it，且谓语部分含有be动词的相应形式时，可以把从句的主语(或it)连同be动词一同省略。

　　3．My husband arranged me to ride in a hot air balloon for my birthday.

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　　答案：arranged后加for　arrange for sb. to do sth. "安排某人做某事"。

　　4．When in Senior High, my class was consisted of 55 students.

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　　答案：去掉was　consist of "由......组成"，不用于被动语态和进行时，故将was去掉。

5．To our delighted, everything goes well.