Ma á

* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

It is a huge transition, but achievable - particularly if we________the massive present waste of energy.

A. drop out of

B. cut down on

C. drop in on

D. go on with

III số 3

IV số 4

VI số 6

IX số 9 

XI số 11

mk hang 2