In the past few years, sea ice ____ in the Arctic as a result of global warming.
#101821
A
had melted
B
has been melting
C
melted
D
is melting
推荐题目
The professor you referred to in the letter______ us students three lectures by next Monday.
#100036
A
has given
B
will given
C
will have given
D
Gave
----- What is the price of petrol these days？-----Oh, it ______ sharply since last month.
#102187
A
is raised
B
has risen
C
has arisen
D
is increased
---- What’s that noise? ---- Oh, I forgot to tell you. The new machine ______.
#102011
A
was tested
B
will be tested
C
is being tested
D
has been tested
If you be in time for the early bus , be sure to get up before five o’clock in the morning.
#101366
A
are to
B
are about to
C
are going to
D
are due to
. —We’re going to Paris for Sylvia’s birthday. But it’s a secret.—Is it? OK, I________ her.
#103844
A
am not going to tell
B
will not tell
C
haven’t told
D
am not telling