Never before _____so highly successful in his attempts to change the weather slightly on a very small scale. [ ]

Which of the following words comes first in the English dictionary (字典)

Health problems are closely connected withbad eating habits and a _______ of exercise

What time does she get up— She ______ up at 6:10 a.m.

The little boy is dirty from head to foot because he ______ in the mud all morning