他曾梦想过乘船环游世界吗?
________ he ever ________ around the world by ship?
政府正在采取措施保证食品的安全。
The government ________ to protect the safety of food.
要不要这份礼物由你自己决定.
It's ________ you whether you accept the present or not.
每个人都应对自己的工作负责.
Everyone should ________ his work.
未来的中美气候合作值得关注.
In the future, Sino-US climate cooperation will ________.
刚才是谁想出了这个好主意啊?
Who ________ this good idea just now?
