` Answer : `
` *** #Hoidap247# *** `
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` text\{Part C.} `

` I, `

` bb1. to ` A boy was trapped for two hours under the debris of the earthquake yesterday.

` - DHNB : ` yesterday

` - ` CT Câu Bị Động Thì QKĐ ` : ` S `+` was `/` were `+` V3 `(+` by Sb `/` O `)`

` - ` The N of N

` bb2. to ` Science and Technology are the keys to the development in other fields.

` - ` the key to something : chìa khóa của cái gì đó

` - ` To `+` V`-`inf

` bb3. to ` You need to learn netiquette when you communicate online.

` - ` CT Need : S `+` Need `+` V`-`inf

` - ` learn sth : học hỏi, tìm hiều cái gì

` - ` CT When : When `+` S `+` V, S `+` V

` or : ` S `+` V when S `+` V

` bb4. to ` Trees absorb carbon dioxide and produce oxygen.

` - ` CT THì HTĐ : 

` @ ` Với V thường
` (+) ` S `+` V`(-s``/es) +` O

` @ ` Tạm dịch : Cây hấp thụ carbon dioxide và sản xuất oxy.

` bb5. to ` Is this salad made of your home-grown vegetables `?`

` - ` CT : Is this `/` Is that `+` N số ít `?`

` - ` CT Câu Bị Động Thì HTĐ ` : ` S `+` be `+` V3 `(+` by Sb `/` O `)`

` II, ` 

` bb{1.} to ` My friend said that Peter was a member of the IT club.
` bb{2.} to ` Tom said that they had bought that house the previous year.
` bb{3.} to ` Nga said that she didn’t have a computer.
` bb{4.} to ` The manager said that there would be an important meeting the next day.
` bb{5.} to ` Mike said that the group was working on their project then.

` ----------------------- `
` - ` CT Câu Gián tiếp dạng Mệnh lệnh : S `+` asked `/` told `/` required `/` requested `/` demanded `+` O `+` not `+` to V `...`
` - ` CT Câu Gián tiếp dạng câu kể : S `+` say(s) `/` said `/` tell `/` told `+` (that) `+` S `+` V`...`
` - ` CT Câu Gián tiếp dạng câu hỏi Yes `/` No : S `+` asked `/` wanted to know `/` wondered `+` if `/` whether `+` S `+` V`...`
` - ` CT Câu Gián tiếp dạng Câu hỏi có từ để hỏi Wh`-`word : S `+` asked `/` wanted to know `/` wondered `+` Wh`-`word `+` S `+` V`...`
` ----------------------- `
` @ ` Quy tắc lùi thì trong câu gián tiếp ` : `
` - ` Present simple (Hiện tại đơn) ` to ` Past simple (Quá khứ đơn)
` - ` Present continuous (Hiện tại tiếp diễn) ` to ` Past continuous (Quá khứ tiếp diễn)
` - ` Present perfect (Hiện tại hoàn thành) ` to ` Past perfect (Quá khứ hoàn thành)
` - ` Past simple (Quá khứ đơn) ` to ` Past perfect (Quá khứ hoàn thành)
` - ` Present perfect continuous (Hiệu tại hoàn thành tiếp diễn) ` to ` Past perfect continuous (Quá khứ hoàn thành tiếp diễn)
` - ` Past continuous (Quá khứ tiếp diễn) ` to ` Past perfect continuous (Quá khứ hoàn thành tiếp diễn)
` - ` will ` to ` would 
` - ` can ` to ` could
` - ` must `/` have to ` to ` had to
` - ` may ` to ` might
` ----------------------- `
` @ ` Chuyển đổi các trạng từ chỉ nơi chốn, thời gian
` - ` This ` to ` That
` - ` Here ` to ` There
` - ` These ` to ` Those
` - ` Tonight ` to ` That night
` - ` Today ` to ` That day
` - ` Next week ` to ` The following week
` - ` Tomorrow ` to ` The next day `/` The following day
` - ` Yesterday ` to ` The day before `/` The previous day
` - ` Last week ` to ` The week before `/` The previous week
` - ` Now ` to ` Then
` - ` The day after tomorrow ` to ` In `2` days’time
` - ` The day before yesterday ` to ` Two days before
` - ` Ago ` to ` Before
` #Pyyx# `