The author implies that almost every animal is able to protect itself from destructive forces by doing which of the following？
A. Moving away.
B. Calling for help.
Climbing up a tree.
D. Remaining with its group.
查看答案
He was______ that he should devote his life to his motherland.
A. decided
B. determined
C. discussed
D. figured
Because he was very poor, he couldn't______to rent his flat.
A. spend
B. afford
C. feel
D. think
The wounded tiger ran into the bushes, leaving a______of blood.
A. tail
B. train
C. trade
D. frail
He didn't know that ______ten years to complete this special task.
A. it will take him
B. he would take
C. he would spend
D. it would take him
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