Question

—Do you often go fishing at weekends?
—Not often，I only go fishing________.

A．at one time	B．all the time
C．at a time	D．from time to time

Answer 1

D

考查介詞短語。at one time曾經；all the time始終；at a time每次；from time to time有時。由句意可知D項正確。