1. Such was the disappointment that Fiona could not keep on working.

2. Competent in his work as Richard is,he does not know how to deal with this client.

3. Had it not been for my Mom's help, I could not have held a big party.

4. It tooks Jane to come to the performance late.

5. Hardly did they recruited young engineers.

6. We have booked five rooms, only two of which have air conditioning.

7. Mrs. Green is pround of what her son contributed to the play.

=>

1. Such was Fiona's disappointment that she could not keep on working. (Đảo ngữ such + tobe + N that S V) 

2. Competent as Richard is in his work, he doesn't know how to deal with this client. (Adj as/though S + tobe : mặc dù)

3. Had it not been for Mom's help, I could not have held a big party. ( Đảo ngữ đk loại 3 : Had S V3/ed, S would/could (not) have V3/ed)

4. It looks as if she will come to the performance late. ( as if HTĐ/TLĐ -> diễn tả sự vật có thật ở hiện tại, tương lai)

5. Hardly any young engineers were recruited. (Hardly : hầu như không)

6. We have booked five rooms, only two of which have air conditioning. (which -> đtqh thay thế N chỉ vật)

7. Mrs. Green is proud of what her son contributed to the play.