23. It was________of Michael to inform us of his delay in case we got worried.
A
careless
B
considerate
C
patient
D
generous
句意为：麦可真是体贴，他通知我们他会迟点来以防我们着急。A.careless不小心的；B.considerate体贴的；C.Patient有耐心的；D.generous慷慨的.所以选B
此题是词语辨析，首先要明白句意，然后根据语境缺位补充词语。
单词的意思不明