It's really time I went home but I'm enjoying myself, so I ________ here a bit longer.
#105318
A
am staying
B
have stayed
C
stayed
D
stay
推荐题目
5.―Have you handed in your schoolwork yet?  ―Yes,I have. I guess it ____ now. 
#105340
A
has graded
B
is graded
C
is being graded
D
is grading
I'll go to the library as soon as I finish what I ________.
#105315
A
was doing
B
am doing
C
have done
D
had been doing
7.Although the causes of cancer ____, we do not yet have any practical way to prevent it.  
#105343
A
are being uncovered
B
have been uncovering
C
are uncovering
D
have uncovered
—Joan,what ________ in your hand?—Look!It's a birthday gift for my grandma.
#105314
A
had you held
B
are you holding
C
do you hold
D
will you hold