-Little Tom       home for three days. His parents are very worried. 
#54754
A
left
B
has left
C
has gone away from
D
has been away from
推荐题目
He          his homework          weekends.
#58931
A
doesn’t; on
B
doesn’t do; on
C
don’t; in
D
don’t do; in
When did you _________ the Chinese Young Pioneers?
#62116
A
become
B
join
C
take part in
D
join in
—Why not ____ the music club, Elise?—I’m sorry. I can’t sing ____ dance.
#60406
A
join; and
B
join; or
C
take part in; and
D
take part in; or