Jim         a skilled worker for almost six years. He is an experienced manager now.
#100435
A
has been
B
had been
C
is
D
was
推荐题目
--- Hi, Kate, can I use your bike for a while this afternoon?--- Sorry.??__________?. 
#103544
A
It’ s repaired?
B
It has been repaired
C
It’s being repaired?
D
It had been repaired
In the past few years, sea ice ____ in the Arctic as a result of global warming.
#101821
A
had melted
B
has been melting
C
melted
D
is melting
 The novel is said _____ into many languages.
#103269
A
being translated
B
having been translated
C
to translate
D
to have been translated