ENORMOUS EFFORT HAS BEEN MADE BY SCIENTISTS TO FIND A CURE FOR THI...

10. - TÀI LIỆU AV CHART 26
Lớp 9 TÀI LIỆU AV CHART 26

10. Enormous effort has been made by scientists to find a cure for this disease

The end !

VIII/ Use the correc tense and form of the verbs in the brackets :15p