---- I'd like to buy that coat. ---- I'm sorry, _____.
A. it was sold
B. it's selling
C. it's been sold
D. it had been sold
Gunpowder was discovered in the twelfth century, but_____.
A. man did not put it to use in war two hundred years liter
B. until two centuries more it was used in war
C. not used in war until two hundred years later
D. in war did not use it two hundred years afterwards
The five-year-old girl by her parents.
A. is looked
B. has looked for
C. is being looked for
D. has been looked
新民主主义社会的民族资产阶级仍然是一个具有两面性的阶级,这种两面性是指A既有剥削工人的一面,又有接受工人阶级及其政党领导的一面____B既有剥削者与被剥削者的阶级利益相互对立的对抗的一面,又有相互合作,具有相同利益的非对抗性的一面C既有走资本主义道路的一面,又有走社会主义道路的一面D作为一个剥削阶级是消灭的对象,作为可以接受共产党和工人阶级领导的社会力量,又是团结和改造的对象