–Tom, what’s the matter with you? You look so worn out!--Nothing serious. I ____ my new house all the day and I am afraid I won’t finish until tomorrow afternoon.
#101402
A
have whitewashed
B
am whitewashing
C
have been whitewashing
D
shall be whitewashing
推荐题目
---How is your mother doing? Is she ________? --Oh, thank you. As a matter of fact, she _______. 
#102419
A
looking up; has recovered
B
picking up; is already back on her feet
C
picking out; is well again
D
taking up; has already been back on her feet
By next summer John _____in this factory for thirteen years.
#100820
A
has been working
B
will have been working
C
will be working
D
has worked