Over the past decades, sea ice _______ in the Arctic as a result of global warming.
#104854
A
had decreased
B
decreased
C
has been decreasing
D
is decreasing
推荐题目
The little boy is dirty from head to foot because he ________ in the mud all morning.
#104514
A
has played
B
is playing
C
has been playing
D
was playing
—Tomorrow ____ my birthday. I’d like you and Jane to come. —I’m not sure if she ____ free.
#104204
A
will be; is
B
is going to; is
C
is; is
D
is; will be
Two building workers got seriously wounded when the stadium _______.
#99780
A
was built
B
was being built
C
built
D
is being built
—— Alice came back home the day before yesterday. —— Really ? Where ＿＿＿＿＿ ?
#104637
A
has she been
B
had she been
C
has she gone
D
had she gone
This kind of glasses manufactured by experienced craftsmen ______ comfortably.
#101226
A
is worn
B
wears
C
wear
D
are worn