The element radium, ______ in the chemistry lab, gave off a blue light.
#95374
A
discovering
B
to be discovered
C
to discover
D
discovered
推荐题目
The workers are trying hard to produce as many cars as they can the people’s needs.
#97120
A
to fit
B
meet
C
to satisfy
D
suit
In April, 2009, President Hu inspected the warships in Qingdao,_______the 60th anniversary of the founding of the PLA Navy.
#88233
A
marking
B
marked
C
having marked
D
being marked
his work these days，he hash’t _____ when to pay a visit to his parents·
#97107
A
Bent On：decided on
B
Worried about；turned on
C
Faced with；taken on
D
Devoting to；focused on
_____, the subject was always in my mind.
#98858
A
Walking or sleeping
B
Walking or slept
C
Having walked or slept
D
To walk and sleep