问题：
The other day Cathy was walking along the Broad Street when she ________ an old friend of
hers, one she hadn’t seen for a long time.
A．came across
B．came up
C．came about
D．came out
The other day Cathy was walking along the Broad Street when she ________ an old friend of
hers, one she hadn’t seen for a long time.
hers, one she hadn’t seen for a long time.
| A．came across | B．came up | C．came about | D．came out |
参考答案：