问题
选择题
I think everyone should donate blood _____ he is healthy because that’s a citizen’s responsibility.
A．as if
B．as long as
C．now that
D．in order that
答案
答案：B
考察连词辨析。A似乎；B只要；C既然；D为了；结合句意可知B正确。句意：我认为只要健康，人人都应该献血，因为那是公民的责任。