The old man was taking a walk, ____ by his grandson. 
#104560
A
supporting
B
supported
C
being supported
D
having supported
推荐题目
Only those who have reached the agreed standard for their event will______ as competitors.
#101288
A
have admitted
B
being admitted
C
be admitted
D
be admitting
 Great changes___ have taken place _____ in the city, and a lot of factories________.
#100428
A
have been taken place; have been set up
B
have taken place; have been set up
C
have taken place; have set up
D
were taken place; were set up
He has always insisted on _______ Mr. Berg instead of Justin.
#101666
A
been called
B
called
C
calling
D
being called