(写出正确的答案) How is it going／go?

(写出正确的答案) Mary was read／reading a book by the window．

（改错）At that timendline　(A)，Mozart touredndline　(B) Europe，gavendline　(C) a lot of concertsndline　(D)．

（改错）Not onlyndline　(A) the Smithsndline　(B) and alsondline　(C) the Blacks can dance tondline　(D) waltz．

（改错）You didn't seendline　(A) the Operandline　(B) Teahouse yetndline　(C)，have youndline　(D)?

（改错）My hometownndline　(A) is inndline　(B) the Songhuajiang River，whichndline　(C) is beautifulndline　(D)．

（改错）Manyndline　(A) stories are written tondline　(B) Esope．Children love themndline　(C) a lotndline　(D)．

（改错）}Go on workingndline　(A) hardndline　(B) atndline　(C) English，don't youndline　(D)?

（改错）We've allndline　(A) enterndline　(B) Project Hopendline　(C)，haven't wendline　(D)?

（改错）One of the childrenndline　(A) playsndline　(B) the violin very wellndline　(C)，aren't theyndline　(D)?