Whenever I think of my childhood, I'll always feel that the period of free time seem to have passed ________
Edison _______ the way to solve the problem.
The climate _______ the amount of the rainfall.And this kind of climate has no _______ on my health.
They _______ all the details of the plan time and again to make sure that the project went smoothly.
Sarah, hurry up.I’m afraid you won’t have time to _______ before the party.
_______ my sister three times today but her line was always busy.