_______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

2, Columbus and his crew arrived________ was so-called the New World by the westerners.

Mr. Wang made up his mind to devote all he could _____the poor people in the flooded area.

_, he knows a lot.

42______that there′sanother good harvest this year43