=>
V/
1. A -> endangered
2. C -> had been
3. C -> seriously
4. A -> might

III/
1. were/would think
2. has attracted/opened
3. will be looking for
4. had been divided
5. had attended

IX/
1. Hoa asked Thanh if he could lend her his iPad for a few minutes.
2. Temporary shelters should be provided for the earthquake victims by the government.
3. If people didn't use too much ferrtilizer, lands wouldn't be spoiled.
4. By the time he came to my house, I had gone out for shopping.
5. Jenny might not stop using Facebook.
6. Nam said to me that he had rented a car and he would pick me up at 6 o'clock the following day.

V.
1, A → endangered
2, C → had been
3, C → seriously
4, A → might

III.
1, Were - Would think
2, Has attracted - Opened
3, I Will be looking for
4, Had been divided
5, Had attended

IX.
1, Hoa asked Thanh if he could lend her his iPad for a few minutes.
2, Temporary shelters should be provided for the earthquake victims by the government.
3, If people didn't use too much fertilizer, lands wouldn't be spoiled.
4, By the time he came to my house, I had gone out shopping.
5, Jenny might not stop using Facebook.
6, Nam said to me that he had rented a car and he would pick me up at 6 o'clock the following day.