They _____ the price of house in the past ten years.
A: doubled
B: have doubled
C: double
D: are doubling
A: doubled
B: have doubled
C: double
D: are doubling
举一反三
- The town's ______ has doubled in the past ten years. A: comment B: research C: population D: average
- The output of television sets has （） in the past five years. A: more than doubled B: more than double C: as many as double D: as much as double
- The average income of the people in this small town is ______ in the past three years. A: [A] more than doubled B: [B] more doubled than C: [C] much than doubled D: [D] much doubled than
- By the end of this century, the population of the world ______ , and so may the population of the small country. A: will be doubled B: may be double C: will have to be doubled D: may have been doubled
- The population of our country has ______ doubled in the past three years. A: larger than B: more than C: as great as D: as many as