A. BEFORE B. WHEN C. AS SOON AS D. AFTERCHOOSE THE WORD OR PHRAS...

30. - DE THI THU DAI HOC MON TIENG ANH VA DAP AN
DE THI THU DAI HOC MON TIENG ANH VA DAP AN
30. a. before b. when c. as soon as d. afterChoose the word or phrase that best completes the sentence.