Question

6. Many memories of old time were        by the conversation we had that evening.

   A. talked about   B. called up

   C. dipped into   D. called back

Answer 1

6. B call sth. /sb. up此处意为"把....... 召唤回来,(使) 回忆起(=to make sth. appear again after it has gone or been forgotten) " ;call back意为"给……回电话"。