It is the only time in history that two Nobel Prizes ________ to the same person

．Ididn’t know how to _______ the problems I faced, so I asked my parents forhelp.

Find ways to praise your children often, you’ll find they will open their hearts to you

The World Health Organization warned that Asian countries __________ attentive to bird flu since Asia ___________ got rid of the disease completely.

_______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian.