you / volunteer / if / you / help / other / people / willingly / and / without / payment.
A. You are an volunteer if you help other people willingly and without payment.
B. You are volunteer if you help other people willingly and without payment.
C. You are a volunteer if you help other people willingly and without payment.
D. You are volunteer if you helped other people willingly and without payment.
Đáp án đúng là: C
Dịch: Bạn là tình nguyện viên nếu bạn sẵn lòng giúp đỡ người khác và không cần trả tiền.
The/ volcanic eruption/ be/ so destructive/ that/ many lives/ be threatened.
It was an interesting novel. I, therefore, stayed up all night to finish it.
I/ couldn’t/ see/ more/ a few/ feet/ front/ me/ because/ the/ snow.