The manager_____ the workers how to improve the program since 9 a.m.
#99548
A
has told
B
is telling
C
has been telling
D
will have told
推荐题目
I need one more stamp before my collection ______. (MET1994 ) 
#104331
A
hascompleted
B
completes
C
hasbeencompleted
D
iscompleted
--- What do you think of this novel? --- Er … sorry. I _____. What did you say?
#101280
A
didn’t listen
B
hadn’t listened
C
haven’t listened
D
wasn’t listening