In the past decades, sea ice ______ in the Arctic as a result of global warming.
#100763
A
had melted
B
has been melting
C
melted
D
is melting
推荐题目
-- How can I apply for an online course? -- Just fill out this form and we _______ what we can do four you.
#102945
A
see
B
are seeing
C
have seen
D
will see
The bridge, which _________ 1688, needs repairing.
#104718
A
is dated from
B
was dated from
C
dates from
D
dated from
Ever since Ming furniture went on exhibit in Beijing, there large crowds at the World Art Museum every day.
#99323
A
was
B
have been
C
has been
D
were
The person we talked about ____ our school last week．
#104467
A
visiting
B
will visit
C
visited
D
has visited
He ______ quite well, but he hasn’t had time to swim since this summer.
#104118
A
will swim
B
Have swum
C
swam
D
swims