THE COUNTRYSIDE IS VERY PEACEFUL … THE AIR IS SO FRESH

5. - BAI TAP TIENG ANH LOP 9 TRAC NGHIEM TU BAI 1 10
Lớp 9 BAI TAP TIENG ANH LOP 9 TRAC NGHIEM TU BAI 1 10

5. The countryside is very peaceful … the air is so fresh.

a. but b. and c. therefore.