_____60 miles a day，you need your mountain bike in a very good state.A．CoverB．Co

题型：不详难度：来源：

_____60 miles a day，you need your mountain bike in a very good state.

A．Cover

B．Covered

C．To cover

D．Having covered

答案

解析

略

举一反三

The lazy waiter ______ to his boss that he had ______ the table.

A．lay; laid

B．lied; lay

C．lied; laid

D．laid; laid

题型：不详难度：| 查看答案

Not knowing what happened, Mom was sad and angry when she saw Dad come home late, ________.

A．having drunk

B．drunk

C．drinking

D．to be drunk

题型：不详难度：| 查看答案

_____from the moon ,our earth with water ____70% of its surface, appears as a “blue ball”

A．seen；covered

B．seeing; covering

C．seen；covering

D．to see; to cover

题型：不详难度：| 查看答案

_______in charge of the shopping center has upset him for quite some time.

A．Left

B．Being left

C．Having left

D．To leave

题型：不详难度：| 查看答案

The machine has been used for several years. It needs______.

A．to repair

B．repaired

C．repair

D．repairing

题型：不详难度：| 查看答案