A．to discoverB．to be discoveredC．discoveredD．being disc……

填空题______(正如我们强调的那样) many times, serve the people is our first policy. (stress)

单项选择题Doctors say that exercise is important for health, but it ______ be regular exercise.

填空题Last night's TV news said that by then the death of the missing people______(未证实) yet. (prove)

单项选择题Not until he left his home ______ to know how important the family was for him.

单项选择题Galileo lived in the City of Pisa, ______there is a leaning tower about 180 feet______.

填空题______(油漆成) red, the building stands out among the rest and looks very attractive. (paint)

单项选择题Last year the number of students who graduated with a driving licence reached 200,000, a(n) ______ of 40,000 per year.

单项选择题Jim went to answer the phone.______, Harry started to prepare lunch.

填空题The news______(房价将要下跌) has caused many people to sell their houses at lower prices. (fall)

填空题Mr. Johnson insisted that the problem worthy of attention______(讨论) at the meeting. (discuss)