COVID-19 IS A ______ ILLNESS AND IS LARGELY SPREAD VIA DROPLET IN THE AIR

Câu 39 (VD):

COVID-19 is a ______ illness and is largely spread via droplet in the air.

A.

respiratory

B.

breath

C.

respiration

D.

breathing

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best

completes the following exchanges.