Part 1:
1. B
→ S + spend + time + V_ing ⇔ It + takes + O + time + to_V
2. B
→ S + asked + O + Wh/H + S + V(lùi thì) ( ở đây vế đầu lùi TLG → QKTD, vế sau lùi HTĐ → QKĐ )
3. A
→ If + S + QKĐ( đối vs Vbe thì chỉ dùng 'were' ), S + would + V0 ( câu ĐK loại 2 )
4. C
S + have/ has +not+ for/ since + time: Lần cuối làm gì
→ The last time + S + V ed+ was + time .
Part 2:
1. If I were you, I would recycle these plastic carrier bags.
2. Noise pollution causes a change in animal life models.
3. Sally thought (that) residents from Venus had very big eyes and round faces.
4. Food and blankets have been given out to homeless people by volunteer.
Chúc bạn học tốt ~
# Yumi