. He apologized for _____. 
#75462
A
his not being able to come
B
his being not able to come
C
his being able not to come
D
him not being able to come
推荐题目
The house is finished at last. All their hard work has ________.
#71586
A
paid back
B
paid up
C
paid off
D
paid for
How many nationalities ______ the  country   ______? 
#71995
A
is; consisted of
B
does; make up
C
is; made from
D
does; consist of