The Input Hypothesis is put forward byA．Krashen.B．Chomsky.C．Bloomfield.D．Halliday.

According to the Critical Period Hypothesis, the best time to acquire a second language is

The kind of input showing the learner what is grammatically correct is known asA．negative

The input hypothesis is proposed byA．Stephen Krashen.B．Norm Chomsky.C．Richard Schmidt.D．Mi

The Input Hypothesis was put forward by______.A．SaussureB．KrashenC．Noam ChomskyD．M.A.K. Ha

The Sapir－Whorf hypothesis is about______.A．language and thoughtB．language and translation

What is implied in the efficient market hypothesis "Theres no such thing as a free lunch"？