It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.                                      (2012·湖北,29)
#10994
A
symptom
B
similarity
C
sample
D
shadow
推荐题目
.Everyone arrived late at the party for_____ reasons.
#14417
A
variety of
B
a varieties of
C
various
D
varieties of
— I saw Dave in the lift this morning. — Really? He _______ around here for a long time. 
#14260
A
won’t be seen
B
wasn’t seen
C
hadn’t been seen
D
hasn’t been seen
The plan once I objected to________ out fine.
#12530
A
working
B
work
C
had worked
D
worked