According to the text, some teachers do not think that L...

A

it can make students confused by the time they do not know which language will prevail during the lessons.

B

it can make teachers' work worthless, as they will not need to be fluent in the foreign language.

C

the use of L1 has proved to be completely useless in a foreign language classroom.

D

by exposing students to the authentic language all the time, they will learn it somehow, even though they do not understand anything during the lessons.

E

since students are there to learn a foreign language, they cannot use it successfully if they still rely on their L1.