27/She.......blood twenty times so far. A.donates B.has donated C.is donating D.to donate 28/He.....lectures to foreign about traditional food and games recently. A.gives B.gave C.have given D.has given 29/They have decided to clean up the neighborhood..........it is full of rubbish. A.so B.but C.although D.because 30/"Have you ever...........to SA Pa"? A.gone B.been C.seen D.visited

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