My pain _____ obvious the moment I entered the office,for the first man I met asked pitifully,“Are you feeling all right?” 
#104459
A
could be
B
could have been
C
must be
D
must have been
推荐题目
---Hi, Tracy, you looked tired.---I am tired. I______the living room all day. 
#101772
A
painted
B
had painted
C
having been painting
D
have painted
 He ______ at the meeting, but his heart attack prevented him.
#104277
A
will speak
B
is going to speak
C
had to speak
D
was going to speak
The classroom ______ 30 feet long.
#104125
A
measures
B
is measured
C
has
D
has length