----- Nội dung dịch tự động từ ảnh -----
30. The problem is very difficult. It.............
A. can't solve
31. The National
B. couldn't solve
Stadium..............next Sunday.
A. open
B. will open
32. The road to our village ......
a. is
b. will
C. can't be solved D.solved
C. will be opened. D.is opened
widened next year.
c. will be d.are