单项选择 适中0.65 引用1 组卷574
I have learned from my bitter experience ________ we don’t know ________ we’ve got until it’s gone.
A.that; that | B.what; what |
C.that; what | D.which; that |
2014高三·全国·专题练习
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He has made ______ a daily routine to visit his grandparents on his way back home.
A.this | B.that | C.himself | D.it |
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