In the summertime, on bright warm days （）the sun was high in the sky, John would help his wife weed and tend the vegetables.

（）the clock on the far wall, I nervously began my speec...

单项选择题（）the clock on the far wall, I nervously began my speech. I was afraid to look at any of the people in the room.

Several weeks went by before Mary noticed that her clot...

单项选择题Several weeks went by before Mary noticed that her clothes seemed loose, and she realized that she （）

Some researchers suggest that dreams serve no real purp...

单项选择题Some researchers suggest that dreams serve no real purpose while （）believe that dreaming is essential to emotional and physical well-being.