I‘vebeentellingyou_____nottodothat，butyounevelistenedtome.That’swhyyougotintotrouble.
C
time and again 相当于 “time and time again ” ，意思是 “一次又一次地，再三地 ” ， 正合题意。 at times 指“有时，偶尔 ”。for the time being 意思是 “暂时 ”。不存在 b 项这种表达 法。
If he_____the storekeeper ‘s scissors ，he would have forgotten to buy a pair.
Bothofmybrothersarenowmarried，soIhavetwo_____.
_____all the representatives still not there ，the meeting was postponed for several hours.