The observations which he reported __________ marketing bothered his boss a lot. 
#95478
A
being concerned
B
concerned
C
be concerned
D
concerning
推荐题目
 Whom would you rather have _____ with you?
#98003
A
to go
B
gone
C
going
D
go
I can make you _____ what I say, but you can’t make yourself ___________ in English.
#95661
A
understand; understand
B
understand; understood
C
to understand; understand
D
understand; to be understood