Hi,<br/><br/>I wonder if the definite article is mandatory in the following example sentence:<br/><br/><b>My friends in Siberia say they are not afraid of (the) cold. </b><br/><br/>If both versions (with and without the ‘the’) are OK, which one is more common in AmEng?<br/><br/>Can we parallel this usage to the pair “in the summer”/ “in summer”? According to my English textbook,<br/><br/>(1) My boss never lets me go on holiday in summer (mainly, BrEng)<br/>(2) My boss never lets me go on vacation in the summer (mainly, AmEng)<br/><br/>Thank you so much!<br/><br/>mus-te