It is reported that the underground system in Changsha now will be open in 2015.
#103392
A
is being built
B
built
C
being built
D
is built
推荐题目
--How did she get infected? --She ________the virus without any protection.
#100265
A
exposed to
B
had been exposed to
C
had exposed to
D
was exposed to
Do you think that bridge _________2,000 metres long? It doesn’t appear so long.
#100010
A
measures
B
is measured
C
has been measured
D
is measuring
--- Does Li Hua serve in the army?---No, but he________ in the army for three years.
#100952
A
served
B
has served
C
is serving
D
would serve
Stop! You can never touch this machine when it ________, it is very dangerous.
#102729
A
has been operated
B
will be operated
C
is operated
D
is being operated