2. She has learned German for three months
-> S have/has VPII for...
4. Brenda, who went on holiday with me, is my close friend.
-> who là ĐTQH that thế từ chỉ người
5. Mary, who is standing by the window, is my next-door neighbor
->who là ĐTQH that thế từ chỉ người
6. The teacher asked Lan why she was so late
-> S asked sb wh- S V(lt)
7. I wish you could take part in our trip
-> S wish/es S could Vnt
8. If the air in this city were pure, we would be healthy
-> If S V(QKD), S would Vnt
9. Chinese is too difficult for me to learn
-> S tobe too adj for sb to Vnt
10. If he didn't tell lies, people would trust him
-> If S V(QKD), S would Vnt
