The rivers have ________, so they will have to spend much money irrigating the crops.[ ]

What else must we pay attention to ____ our school clean–We must not throw any litter onto the ground.

We all ________ his optimism to the state of the current economy of our country becausewehavefaithinour government. [ ]

What’s the time by your watch—It’s ________.

Tell me ________ how it came about that you were 20 minutes late for classYou needn’t go into details