$@Mốc$
Giải thích tổng quát:
Dùng thì quá khứ đơn: The last time + S + V(qkđ) + was + time + ago.
It is a long time (or time) since + S + last + V(qkđ)+....
Thì hiện tại hoàn thành: S + have/has(not) + $V_{PII}s + .......
This is the first time + S +have/has+ $V_{PII}s + .....
+) For + khoảng thời gian
VD: for 3 years, for 4 days, for 7 months,.......
*For đi với a long time.
+) Since + mốc thời gian : last night, yesterday,..... hoặc là một mệnh đề chia ở qkđ.
VD: since 1966, since I was a child,...
+) Before : trước đó.
+) ever : chưa bao giờ.
Giải:
$17$. The last time she kissed me was 5 months ago.
⇒ She hasn't kissed me for 5 months.
$18$. It is a long time since we last met.
⇒ We haven't met for a long time.
$19$. When did you have it?
⇒ How long have you had it? (Ý chỉ được bao lâu rồi → HTHT)
$20$. This is the first time I had such a delicious meal.
⇒ I haven't had such a delicious meal before.
$21$. I haven't seen him for 8 days.
⇒ The last time I saw him was 8 days ago.
$22$. I haven't taken a bath since Monday.
⇒ It is Monday since I last took a bath.
$#chucbanhoctotnhe;333$