81, You must carry out the manager's instructions exactly.
(carry out: hoàn thành công việc gì đó)
82, I don't know who made Shara leave the party so suddenly.
hoặc I don't know why Shara made away the party so suddenly.
(chọn 1 trong 2, nó có nghĩa giống nhau)
83, If I'd caught the 10:30 train, I would have turned up on time.
(chuyển sang thành câu điều kiện loại 3: If + S + had P2, S + would have P2)
84, Sara knew that it was necessary for her brother to leave by 5 o'clock.
(tobe necessary for sb to do sth = have to do sth: phải làm gì đó)
85, Everyone in the office looked up to the manager.
(look up to: hướng theo, tôn trọng)
$\text{#BTS}$
