They____on the program for almost one month before l was arranged to help them. Now, we____on it as no result has come out.
#99542
A
had been working: are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working
推荐题目
.The 114 colorful clay Warriors ____ at No. 1 pit, ______ in height from 1.8m to 2m, have black hair, green, white or pink faces, and black or brown eyes.
#102868
A
unearthed; ranging
B
unearthing; ranging
C
unearthed; ranged
D
are unearthed; are ranging
All the scientific evidence ______ that increasing use of carbon dioxide ______ the rise of the earth’s temperature.
#101298
A
show; result in
B
shows; result from
C
shows; results in
D
shows; results from
—Have you seen the movie “2012”？It’s quite thrilling.—No，I ________ to buy a ticket，but it ________ cats and dogs.
#99408
A
have intended；was raining
B
intended；had rained
C
have intended；rained
D
had intended；was raining
After Jack had sent some e-mails, he _______ working on his project.
#102159
A
had started
B
has started
C
started
D
starts
After the examination，my teacher told me that failure _______the mother of success.
#102951
A
was
B
is
C
be
D
been