Mr. Green didn’t understand ________made his daughter so absent-minded.A. how that was B what was it C. why it was that D. what it was that
It was with the help of the local guide ______ the mountain climber was rescued.
—What’s all that noise about outside? —Oh, I forgot to tell you. The road to the railway station ______.
We human beings should be very careful with what we do with nature, _____power is beyond our understanding.
Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
Everybody in the village likes Jack because he is good at ______ and telling jokes.