The continuous rain ______ the harvesting of the wheat crop by two months.

Excuse me, where did you get the book—I borrowed it from the ________.

Where are the books—_______ in the bookcase. Do you need _______ now

I will go to the science palace to morrow ____ it doesn’t rain heavily

Xun were a contemporary writer, I can’tguarantee that he ________ laughed at by readers, as most young people don’tappreciate his writing style.