Although none of these are completely correct, I'd choose D. to change tenses, an irregular verb has to change its spelling.
A is definitely incorrect - that is a rule about regular, rather than irregular verbs. B is also incorrect - there are no rules about irregular verbs so you have to learn them all by heart. C is incorrect because this is true for regular verbs as well, not just irregular.
This leaves us with D as the correct answer. Often, various forms of irregular verbs change more or less drastically. For example: see - saw - seen; ring - rang - rung, etc.
Im not sure what the answer is
Answer:
On September 11, 2001, radical Islamic terrorists hijacked and crashed four passenger jets in New York, Washington, DC, and Pennsylvania. In all, 2,976 people, mostly civilians, lost their lives on that day. In the days following the attacks, US and British intelligence confirmed that Al-Qaeda, led by Osama bin Laden, had planned and carried out the attacks. On September 20, President George W. Bush addressed Americans-many of whom had never heard of Al-Qaeda-in a televised speech before a joint session of Congress. Bush contrasted the September 11 attacks on civilian targets with December 7, 1941 when the Japanese bombed the naval base at Pearl Harbor. He explained that while Al-Qaeda was linked to more than sixty countries, its base was Afghanistan. He condemned the Taliban regime which controlled Afghanistan, and announced the beginning of a War on Terror.
Explanation:
