问题
选择题
Peter must be ill. It’s the only thing that can _________ his strange behavior.
A．lie in
B．result from
C．account for
D．explain about
答案
答案：C
考查短语辨析。句意“皮特一定是生病了。这是能够解释他的奇怪的行为的唯一事情。”A“在于”；B“因为”；C“解释......的原因”；explain sth. to sb.。故选C。