The COVID-19 epidemic has spread around the world, Taiwan is forced to lock down to contain the epidemic. In order to ensure the international students banned from entering Taiwan to complete their study and graduate as scheduled, Tamkang University has cooperated with Microsoft Corporation for online courses, since the second semester of the 2020 academic year, and requires all its faculty who have international students in their classes to use MS Teams Software to teach online. This article is to survey the efficacy of this unprecedented, large-scale, online teaching in colleges and universities in Taiwan, aimed at knowing about the students’ reaction to the oral and writing courses in French taught by means of MS Teams Software and about their preference for the teaching and learning methods. The survey indicates that despite a tendency for the online instruction, the respondents of the questionnaire consider that the online learning is less effective in basic French, that the oral-aural courses are less effective than reading and writing courses and that a majority of them express a strong preference for the traditional chalk-blackboard teaching methods. Furthermore, the survey, if referring further to the written opinions of the respondents, concludes that a language teacher is not easily replaced if well-equipped with the traditional teaching methods and ability to make good use of the state of art technology.