Jim is eight-year-old boy. He spends half _____hour playing _____ piano every day.
—Jim has made a great English speech today. --_________, and_________.
—When you have difficulty , do remember to_________. Two heads are better than one.
—Excuse me, what’s the_________usually used for? --It’s used for protecting people from the rain.
—It’s difficult for the village children to cross the river to get to school. We think a bridge_______over the river.
.—How _______the frog(雾) is! We can’t see clearly while riding.