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
It is demanded that you ____ at six. 
#102746
A
will arrive
B
arrive
C
arrived
D
would arrive
— Why? Tom, your shirt is so dirty! — Mum, I __ my storeroom downstairs。
#104430
A
cleaned
B
have worked
C
was cleaning
D
have been cleaning
—Why do you want to work for our company?—This is the job that I ______for.
#102407
A
looked
B
am to look
C
had looked
D
have been looking