By now, more than 100 photos ________ back to the earth by Chang’e-3.
#99862
A
had been sent
B
has been sent
C
have been sent
D
will be sent
推荐题目
—When are you leaving for Chicago?—As soon as we ________ the project.
#99455
A
are completing
B
completed
C
will complete
D
complete
After Jack had sent some e-mails, he _______ working on his project.
#102159
A
had started
B
has started
C
started
D
starts
Over the past l00 years，sea level steadily as a result of global warming．
#103377
A
had increased
B
has been increasing
C
increased
D
is increasing
Great changes ___ in the city, and a lot of factories ___.
#101465
A
have been taken place, have been set up
B
have taken place, have been set up
C
have taken place, have set up
D
were taken place, were set up
Large quantities of water, as well as some other timely help including a medical team ___since the serious drought hit Yunnan Province.
#101955
A
has offered
B
had been offered
C
have been offered
D
is offered