Some children were 1_____ on the ice. It was snowing 2_____ but they enjoyed themselves there. Mike, the tallest boy, skated fast and he 3_____ that there was a hole 4_____ the ice. He 5_____ into the water. The other children called out loudly for help. 6_____ at that moment a young man 7_____ by and heard them. He put his bike by the side of the river 8_____ ran to them. When he pulled Mike out of the 9_____, he was all wet. Then he sent Mike to a hospital. 10_____ that the young man hurried to leave.1.

The children will now play some pieces of music that they ______ themselves.

The entire audience,（）were children, enjoyed the performance very much.A. most o

[问答题]They enjoyed themselves on the party.

[主观题]The children enjoyed______ (they) in the．river

Some of our（1） ____ are funny,especially from the early years when our children

Though________of the danger，he still went skating on the thin ice．（ ）A. warningB

[问答题]Once upon a time, some children were playing at seaside when they found a t

They were a quiet couple who ______ themselves.A. kept toB. kept withC. kept inD

Unlike usual hotels，all the rooms in the ice hotels are made of ice.In some ice

容器中储有一定量的氦气，其压强为P，温度为T，则单位体积内的分子数为_____1_____,分子的平均动能为_____2_____。容器中储有一定量的氦气，其压