50. The Englishman has a very good ear _____ music. You can ask him for some advice.
| A．at | B．of | C．for | D．In |
In London, people always take an umbrella with them_____it rains.
| A．so that | B．in case | C．as if | D．even though |
He stayed up late last night,_______for the exam that would take place next week.
A．prep ared |
B．preparing | C．to prepare | D．and preparing |
Mount Wutai,_____we visited last month,attracts hundreds of thsousands of vistors every year.
| A．where | B．which | C．what | D．as |
Not able to______city life, Granny decided to go back to the village and live in peace there.
| A．lead to | B．devote to | C．agree to | D．adapt to |
---Many species are now in danger of dying out.
----True.Measures should be______to protect them right now.
| A．taken | B．made | C．acted | D．carried |