The Yangtze River, China’s longest, has been affected by a severe drought, ________ the lowest level of rainfall this year since 1961

It’s years ____you broke up then—Yes I have regretted the decision It was long ____Irealized I had mistaken him

—Has your son come back from abroad for the winter vocation?—Yes. But he stayed at home for only a week. Now he _____ back to college. [ ]

Julia, please get two potatoes and ________

What _______useful book it is!—Yeah, it tells youhow to play _____ guitar.