S + LAST + VED + TIME+ AGO

2.

S + last + Ved + time+ ago: Lần cuối cùng làm gì

=> S + have/ has +not+ for + time

=> It’s + time+ since + S + last + Ved.

=> The last time + S + V ed+ was + time + ago.

Ví dụ: It last snowed 2 weeks ago.

=> It hasn’t snowed for 2 weeks

=> It’s 2 weeks since it last snowed.

=> The last time it snowed was 2 weeks ago.