—Has Tom finished his task yet?—I’m not sure. But he _____ on it last week
#100481
A
was working
B
has been working
C
worked
D
had been working
推荐题目
Up to now, large quantities of food ____ to Africa to save the starving people.
#102504
A
is sent
B
has been sent
C
have been sent
D
are sent
——You see how thin Ann is!——She ______ gain some weight but she______ too little.
#99970
A
would; ate 
B
will ; eats 
C
would ; has eaten 
D
will ; is eating
-----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.
#100851
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish