In the past half-century, average incomes _______ quickly in developed countries, yet happiness levels have remained almost the same.
#102364
A
have risen
B
had risen
C
rose
D
rise
推荐题目
About 170 people _____ and dozens more _____ after a flood hit an Indonesian town last week.
#104974
A
were killed; are still missing
B
have been killed; were still missing
C
are killed; are still missing
D
had been killed; were still missing