- 问题详情:46.Theteachersarestrict________theirpupils.47.Wethink_________necessarytomasteraforeignlanguage.48.Therearetimes__________weneedquietandpeace.49.BeijingwasthefirstcityinChina__________(hold)theOlympicGames.50.Howmuch________(popular)youlookwi...
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