26. We haven't eaten this kind of food since January.

- S + haven't/hasn't/ never + Vpp + O + since/for + time.

= The last time + S + V(past) + O + was + (pre) + time.

27. Because it rained heavily, we were late for school.

- Because of + NP/ V-ing = Because + clause.

28. That computer doesn't work as well as this one.

- A + V + so sánh hơn + B = B + not V + so sánh bằng + A.

29. The Lion team performed less successfully than the Eagle team.

- So sánh hơn của tính từ dài:

   A + V + more + adj + than + B = B + V + less + adj + than + A.

26. We haven't eaten this kind of food since January.
(The last time + S + V-ed + was + time = S + have/has not + Vp2 + for/since + time: lần cuối làm gì = chưa làm gì kể từ/trong khoảng ...)
27. Because it rained heavily, we were late for school.
(Sau động từ thường là 1 trạng từ chứ không phải tính từ - điền heavily, vế đầu giữ nguyên)
28. That computer doesn't work as well as this one.
(So sánh không ngang bằng: S + be/V + as + adj/adv + as + S)
29. The Lion team performed less successfully than the Eagle team.
(Không thể dùng trợ động từ didn't ở trước nên dùng từ less - dạng so sánh hơn của little)