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
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.