A cough is usually nothing to worry about unless it lasts for ten days ___.A．or

题型：不详难度：来源：

A cough is usually nothing to worry about unless it lasts for ten days ___.

A．or more

B．instead

C．at most

D．only

答案

解析

题意是“咳嗽通常情况下没什么担心的，除非它要持续1天或者更长时间”。or more中的or表示选择关系，不是构成固定结构，其后省略了days。at most最多；instead代替；only仅仅，只有。

举一反三

Jack is late again. It is ________ of him to keep others waiting.

A．normal

B．ordinary

C．common

D．typical

题型：不详难度：| 查看答案

Would it be ____for you to pick me up at four o’clock and take me to the airport?

A．free

B．vacant

C．handy

D．convenient

题型：不详难度：| 查看答案

There are plenty of jobs ______ in the western part of the country.

A．present

B．available

C．precious

D．convenient

题型：不详难度：| 查看答案

______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.

A．To be tried

B．Tired

C．Tiring

D．Being tired

题型：不详难度：| 查看答案

—What’s the area and population of the US？

—The US is about the same size as China, but its population is five times ______.

A. smaller B as little. C. as few D. bigger.

题型：不详难度：| 查看答案