31.   But senior alliance officials continue to give mixed signals about where an attack could occur.

32.   By Saturday afternoon, the Israeli settlers here had yet to remove blood-soaked mattresses and shattered windows in three homes where the attacks occurred.

33.   By taking daily readings and recording them in a diary, the child can predict when asthma attacks may occur and take measures to prevent them.

34.   Cardinals owner Bill Bidwill was in New York on Tuesday when the attacks occurred.

35.   Clinton was about to depart for a weekend at his Camp David retreat in Maryland when the Capitol attack occurred about a mile to the East.

36.   Clinton was about to depart for his Camp David retreat in Maryland when the Capitol attack occurred about a mile to the east.

37.   Countless attacks have occurred on it over the years, according to Afghans.

38.   Delta is imposed in places where an attack has occurred and in places where an attack is thought to be likely.

39.   Current laws in most cities and towns are inadequate in dealing with these issues because they address the situation only after an attack occurs.

40.   During the six years she was married, her husband felt alternately helpless and angry when an attack would occur.

n. + occur >>共 919
incident 6.74%
accident 6.06%
attack 4.78%
explosion 4.08%
blast 2.84%
death 2.35%
shooting 2.24%
problem 1.82%
crash 1.75%
injury 1.56%
attack + v. >>共 376
be 24.57%
come 8.48%
occur 7.47%
take 5.59%
continue 3.22%
begin 2.12%
follow 1.95%
appear 1.79%
cause 1.66%
kill 1.49%
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