This is a______ but extremely difficult technology in the future.
#20858
A
satisfactory
B
costly
C
promising
D
far-fetched
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He’s perfectly to live in the mountain and paint pictures all day, though he is badly off.
#19360
A
curious
B
proud
C
anxious
D
content
The police tried to get some clues from the suspect, but he remained______.
#19252
A
silent
B
quiet
C
calm
D
secret
Now that you are in charge of the department, you are ___________ to carry out the plan.
#17813
A
voluntary
B
bound
C
anxious
D
ambitious