The temperature can fall to -50°C. _____ is, 50°Cbelow freezing point.A. Which B. It C. This D. That
She said she was sorry _____ the train, so she had to stay here for another day.
Although swimming is his favorite sport, yet he doesn't like _____ today.
Saying always has less difficulty than _____.
_____ his homework, he went out to play.
_____ from the top of the hill, the lake is just like a mirror.