that all the risks should be calculated in advance.
A. This is necessary
B. Which is necessary
C. That is necessary
D. It is necessary
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conscious 的意思是()。
A. 明白的
B. 意识到的
C. 有思想的
D. 有经验的
His wife(ensure) that he took his pills every day.
He broke his leg. ________________ (As a result/No matter how) he will have to away from school for two or three months.