In the past decades, sea ice _____in the Arctic as a result of global warming.
#102142
A
had melted
B
has been melting
C
melted
D
is melting
推荐题目
---John, why are you so upset? ---I my cell phone all morning but it is nowhere to be found.
#101303
A
am looking for
B
have looked for
C
have been looking for
D
had looked for
— How long _________ in singapore?— For just the weekend. I’ll be back next Monday morning.
#101765
A
have you stayed
B
are you staying
C
did you stay
D
do you stay
--- You have made a promise to go with me to Nanjing. So why aren’t you getting ready?--- But I ________ that you wanted me to start at once.
#100573
A
haven’t realized
B
hadn’t realized
C
didn’t realize
D
don’t realize
—Shall we go to the market to get some apples？—Look！It ______rain.Let’s make it another time.
#104549
A
will
B
is going to
C
would
D
shall
--- What ______ when I phoned you? --- I ______ my work, and I wanted to go out.
#104103
A
have you done; finished
B
were you doing; have finished
C
did you do; had just finished
D
were you doing; had just finished