—The experiment is of particular importance. —I see. We will carry on with it ________ we can get enough money.
The ground is________with ________leaves.
The interesting book is said ________ into a lot of languages in the last five years.
You'd better __________ your reasons right now. We have no time to waste.
They have a good knowledge of history but little __________ they know about geography.
It wasn't until nearly a month later __________ I received the manager's reply.