B1 : điền giới từ để hoàn thành các câu sau : 1) your father is very kind .......... David 2) hurry or you will be late .......... school 3) were they present .......... the meeting 4) she was confused ............the dates 5) his book is different ......... mine B2 : write the sentences so that it has a similar meaning to the original one 1) keeping the environment clean í very important > It' s.............. 2) they will show the time machine to the public when they finish it > the time machine ........... 3) he was delighted to receive his aunt 's letter > he was delighted tha ............ 4) old car tires are recycled to make shoes and sandals > people ................ 5) I'm very sad that I wasn 't accepted in that group > I'm very sad not ............ Bài 3 : fill in the blank with an appropriates works : Learning a language with is , in some way , like (1) ....... how to fly or play the piano . There (2)......... important differences but there is a very important similatity . It is this learning how to do such things need lost (3) ....... practies . It's is never simply to " know" something . You must be able to " do " things with what (4) ........ know. For example , it is not enough simply to read a book on (5) ........ to fly an aeroplane . A then try to (7) ........ without a great deal of practice firts , you will crash and kill (8)........ . The same is true of (9)......... the piano . So you thinhk it is enough simply to read about it ? Can you play the piano without having lost of (10)........... first ? GIÚP E NHA !!!!! 😗😙😗😙