A successful scientist needs _____ if he wants to make hypothesis (假设) of how processes work and how events take place.
We were shocked at the news____________a 7.1-magnitude quake struck Yushu county on April 14th.
. Rather than____________time watching TV at home, we____________to take part in sports and games on weekends.
It has been confirmed____________he wasn’t the person who stole your bike.
. He is clever and has a____________for learning language.
The storm is moving slowly____________.