Cindy, you learn physics so well. What’s your ______—Doing a lot of exercises.

He left home ______a cold morning, and I heard that he was coming back _____ the late afternoon.

the bad weather, most of the crops arerotted away.

He wrote a letter ______ he explains what had happenedin the accident.

s a photo of _________ when theywere young.—OK, how happy they both looked!