Over the past decades, forest area ______ in China as a result of massive deforestation.
#102586
A
had decreased
B
decreased
C
is decreasing
D
has been decreasing
推荐题目
Li Gang, a police officer, said that little about what his son _____ he know the moment all the media reported the traffic accident _____ in Hebei University．
#101530
A
did do; happened
B
would do; happening
C
could do; happened
D
did did; happening
If we use the new recycling method, a large number of trees .
#102768
A
are saved
B
will save
C
will be saved
D
have saved
The number of foreign students attending Chinese universities _____ rising steadily since 1990.
#100674
A
is
B
are
C
has been
D
have been
Take some time to _______ your successes and failures.
#99240
A
account of
B
reflect on
C
work out
D
call up
. It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .
#103604
A
has been selected
B
had been selected
C
has selected
D
selected