法国大革命的实质是（   ）

    Layla and her family were driving to the town park. It was a hot day. She wanted to swim in the lake. As they got out of the car, Layla saw ____ (she) friends.

    "Let's go into the water!" she called. All the kids jumped in ____ (happy).

    Layla always has fun at the park. In spring, Layla's dad often takes her fishing in ____(冠词) lake. They usually go early in the morning. The lake water is still (平静的). It is different ____ (介词) the river, which has water that runs by

    In summer, ____ (family) have picnics near the lake. The kids play and swim in the lake.

    In the morning of autumn, the lake has fog (雾) over it. Layla's dad once____ (tell) her something about fog: Hot summer days warm the water, and then cool autumn air ____ (move) over the lake's warm water. The water vapor(水蒸汽) in the air gets cool. It ____ (become) small drops of water (水珠). We can see those drops of water hang in the air as fog.

    Layla loves winter at the park too. The cold ____ (temperature) turn the water into ice. Many people go skating on the ice.

    The lake looks different at different times of the year, ____ (连词) it is always a good place to have fun!