BIẾN ĐỔI THÀNH CÂU HỎI ĐUÔI:
8. Shall we go out for dinner tonight?
->We..................................................
9. Did there use to be trees here?
->There........................................
10. Won't this take long?
->This................................
shall go out for dinner tonight, shan't we?
used to be trees here, didn't there?
won't take long, will it?
có shan't we luôn hả bạn?