Helen was much kinder to her youngest child than she was to others, _____, of course, made the others jealous.
| A．who | B．that | C．what | D．which |
Floods are __________（危及）the town.
I can't understand what he said, but from his friendly gI can learn what he meant.
Peace is the greatest __________（武器）for development.
My mother wore a long dress because it was a fmeal.
The child was __________（昏迷不醒的）at the side of the road, having been run down by a car.