The water purification method ？ -remove all subtances
（）
-only removes suspended impurities
（）
-use heat
（）
-add chlorine water
（）

After the fall of saigon, americans a) were eager to explore the lessons of vietnam b) just wanted to forget about the war c)bought airline tickets to hanoi d)demanded that the u.s. get involved in "another vietnam"

You could speculate that it is important for motorists to keep -up-to-date with traffic laws and driving techniques

Who can translate this tá an-deacair ag an ngaeilge