They _____ friends since they met in Shanghai.
#102457
A
have made
B
have become
C
have been
D
have turned
推荐题目
 The teacher told me that the earth _______ round.
#103196
A
was
B
is
C
were
D
are turning
 --Why were you not at the concert last night?--I _______a close game between Seattle and Miami.
#100375
A
watched
B
had watched
C
have been watching
D
was watching
Yangzhou high school ___________ since 1902. 
#100008
A
has come into existence
B
has been existed
C
has been in existence
D
began to exist