________ this material can be used in our factory has not been studied yet.
A.WhichB.WhetherC.WhatD.That在线课程B
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- 2026-04-24this material can be used in our factory has not been studied yet.A.WhichB.WhetherC.WhatD.That
- 2026-04-24he got to the village is still unknown.A.HowB.WhereC.WhatD.Which
- 2026-04-24we need more practice is quite clear．A.WhenB.WhatC.ThatD./
- 2026-04-24you have done!A.What bad workB.What a bad workC.How bad workD.How a bad work
- 2026-04-24A few tall buildings in our village.A.have set upB.have been set upC.have set outD.have been set out
- 2026-04-24How can you deal this difficult problem?A.ofB.aboutC.onD.with
- 2026-04-24The lights were still on and the windows open, they left in a hurry.A.whenB.thoughC.so thatD.as thou
- 2026-04-24He shook his head and looked when he heard the bad news.A.sadly, sadlyB.sadly, sadC.sad, sadlyD.sad,