We couldn’t understand: what could ______ his sudden change of mind? 
#66037
A
enjoy
B
explain
C
accept
D
mean
推荐题目
Harry has been out of work for six months, so he has difficulty _____.
#65140
A
earning livings
B
earning his living
C
to earn livings
D
to earn his living
The hotel has been enlarged; ____, its service is improving.
#72880
A
as a result
B
on the other hand
C
in addition
D
as well as