Over the past decades, sea ice _____ in the Arctic as a result of global warming.
#104079
A
had decreased
B
more than
C
attach
D
apply
推荐题目
—What were you up to when she dropped in?—I _________ for a while and __________ some reading.
#104505
A
was playing; was going to do
B
played; did
C
had played; was going to do
D
had played; did
I got caught in the rain and my suit______. 
#102751
A
has ruined
B
had ruined
C
has been ruined
D
had been ruined