A major search has been_____ for  a Malaysian Airlines jet with 239 people on board after it lost contact flying from Kuala Lumpur to Beijing.
#63752
A
identified
B
launched
C
substituted
D
dissolved
推荐题目
 Tom ________ in the library every night over the last three months.(2011·北京)
#63775
A
works
B
worked
C
has been working
D
had been working
His uncle went abroad in 2010, and _______since.
#63782
A
has not been heard of
B
had not been heard of
C
had not heard of
D
has not heard of
It's said that they ________ a better life ever since they moved to the US.
#63764
A
had enjoyed
B
have been enjoying
C
were enjoying
D
would enjoy