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【題目】When will the meeting be over?

【題目】So _______life will continue to live on the earth depend on whether this problem can be solved.

【題目】Water，which seems so simple and common，is ________ makes life possible.

【題目】I just wonder ________ that makes him so excited.

【題目】What can the man do?

【題目】What’s John doing now?

【題目】It is obvious to the students ______ they should get well prepared for their future.

【題目】_______ many scientists believe is ______the continuous presence of water benefits the earth a lot.

【題目】What does the woman suggest the man do?

【題目】What do we know about the sisters?