题型：解答题 ______ of the household rubbish ______ recycled or reused since the new technology was applied.A. Three-fourth; has B. Three-fourths; haveC. Three-fourths; has beenD. Three-fourth; have been 查看答案
题型：解答题 －I wonder ____________.－Zebras.A．what do they call these animalsB．why they call these animalsC．What they call these animalsD．why do they call these animals 查看答案