(单选题)
64.( )
A.one after another
B.side by side
C.now and then
D.again and again
参考答案:D
参考解析:
考查短语辨析。句意:长长的脖子时而抬起,时而弯下,一次又一次。one after another意为“一个接一个,接连地”;side by side意为“并排,并肩”;now and then意为“偶尔”;again and again意为“再三地,反复地”,符合句意。故选D。
知识点:
