The FBI has issued a second warning that more terrorist attacks may be carried out in the next week against U.S. targets at home or abroad. But officials said they did not know how or where the attacks may occur

1. According to the passage, which of the following is true?
This is the first warning
The warning did not come from the FBI
They said they knew when the attack would happen
They expect an attack on the U.S.
There was no warning

2. According to the passage, which of the following is true?
They think terrorists will attack again
They said they are going to attack the terrorists
There are no terrorists
There will certainly be no more attacks
The attacks have finished

3. According to the passage, which of the following is true?
The attack will be much later
They expect the attack soon
They are not expecting more attacks
They said the attacks are over
No one expects an attack

4. According to the sentence, which of the following is true?
They know exactly where the attack will be
They do not know how the terrorists will attack
The official knew everything
The official didn't expect an attack
The official knew where the attack would be