赞题库-背景图

单项选择题

In the future, people will mainly depend on ______ energy.

A．sun
B．solar
C．mine
D．mineral

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热门试题

单项选择题They agreed to order ______ the waiter recommended to them.

A．whomever
B．whoever
C．whichever
D．whatever

单项选择题______ everyone gets a headache now and then.

A．Hardly
B．Scarcely
C．Virtually
D．Likely