$1.$ I am interested in going to the cinema.
→ interested in: điều quan tâm, chú ý, thích thú
$2.$ Can she look after herself when her mother is away?
→ Look after = take care: chăm sóc
$3.$ Why don't we eat out tonight?
→ Why don't we + Vnguyên mẫu
$4.4 Lan can't swim as well as Han.
→ Ta dùng cấu trúc so sánh bằng: S + be/ V + as + adj/ adv + as + Noun/ pronoun