1.Mary is a vegetarian. I cooked a meal for her yesterday. @ Mary, ____________________________________________________________ 2. I spent whole day looking after my grandmother. It _______________________________________________________________________. 3.Going swimming in the summer is interesting. ->It is._________________________________________________________________________ 4.Mai spends 4 hours a day practicing English with her friends. It takes _______________________________________________________________________ 5. If you are not careful, you will cut yourself with that knife. Unless ______________________________________________________________________ 6. Many countries in the world will use solar energy. @ Solar energy ___________________________________________________________ 7. Hung has learned English for five years. @ Hung started ___________________________________________________________ 8. Although he is so young, he performs excellently. @ Despite _______________________________________________________________ 9. Many countries in the world will use solar energy. @ Solar energy ___________________________________________________________ 10. Nam often went to work by car some years ago. @ Nam used _____________________________________________________________

`1.`  Mary, whom cooked a meal for her yesterday is a vegetarian.

`-`  N(người) + whom + S + V : đây là mệnh đề quan hệ không hạn định nên thường tách mệnh đề chính bằng dấu " , "

`2.`  It took me whole day to look after my grandmother.

`-` spend/spent time doing st : dành bao lâu làm gì

`=`  It+ takes/took+ sbd+ to V…:mất bao lâu để làm gì

`3.`  It is interesting to go swimming in the summer.

`-` N/Ving + tobe + adj : cái gì như thế nào

`=`  It’s + adj+ to Vbare… : nó như thế nào để làm gì

`4.` It takes Mai 4 hours a day to practice English with her friends

`-` spend/spent time doing st : dành bao lâu làm gì

`=`  It+ takes/took+ sbd+ to V…:mất bao lâu để làm gì

`5.` Unless you are careful, you will cut yourself with that knife

`-` Câu điều kiện loại 1 với Unless

`-` Unless = If…not.., S+ will+ V…: nếu không…, trừ khi…

` 6.`  Solar energy will be used in the world by many countries

`-`  Câu bị động Tương Lai Đơn : S+ will + be + P2… + ( by + O )

`-` by O đứng sau trạng từ chỉ địa điểm

`7.`  Hung started learning English five years ago

`-`  S + have/has + Ved/Vp2 + for + time : đã làm gì khoảng bao lâu

`=` S+ started + Ving+ time + ago : bắt đầu làm gì

`8.` Despite being so young, he performs excellently

`-` Despite/in spite of+ N/ ving, S+ V + O `=` Although/ though/ even though + S + V + O, S + V +O : mặc dù

`9.`  Giống câu `6`

` 10.` Nam used to go to work by car some year ago

`-` S + used to+ Vbare…: thường làm gì trong quá khứ