单选：寮の洗濯機は何時まで（）ことができますか。A．使いますB．使ったC．使うD．使わない

[ 词汇与结构]—I won’t be free ______I finish this work.A after B until C but D when

[阅读理解] Today the official language of the United Sates and most of Canad...

[阅读理解] Long, long ago there was no zero. To write the number sixty-three...

[交际用语]- Hello, who is calling?- _________A Mary is out. B Hello, this is Willi

[ 阅读理解]No one is glad to hear that his body has to be cut open by a surgeon...