BÀI 1. CHOOSE THE MOST SUITABLE ANSWER BY SLECTING A, B, C, OR D.

9. - TUYEN CHON 20 DE THI KIEM TRA TIENG ANH LOP 4
Lớp 4 TUYEN CHON 20 DE THI KIEM TRA TIENG ANH LOP 4

9. The box .... blue

A. are B. aren’t C. is D. this