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It is believed that the tight employment market has forced job seekers to_______whatever work is available.

The FBI last night released pictures of two men __________ planting the bombs which brought great damage to the Boston Marathon.

A professor said the rise of the BRICS countries（金磚國(guó)家） is a/an _______ of the end of the world in the control of the USA.
A. barrier        B. process        C. aspect              D. symptom

Believing in people is the key to motivating people to ______ their potentials.

He made a decision that when he grew up, he would try his best to      money for the poor.

Many years have been spent by him       how to solve the question.

Tom was ______ that he couldn’t understand ______ difficult sentence.

He spoke ______ quickly ______ I couldn’t understand a word he was saying.

The boy went in _______ when he left for school that he left his key inside the house.

We all felt a sense of_______when we saw so many overseas Chinese coming back safe and sound from Libya.