Nobody can solve the problem.
A. The problem can’t be solved.
B. The problem can be solved.
C. The problem can solve.
D. The problem can’t be solve.
Đáp án A
I think we should have our house painting because it looks too dirty.
The situation is serious. Something must ___________ before it’s too late.
Species that have already lost habitat because of deforestation were given higher priority in the plan because of their greater risk of extinction.