Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

A. benefit 

B. every

C. bed

D. enjoy

Dãy gồm các chất có thể điều chế trực tiếp (bằng một phản ứng) tạo ra axit axetic là

A.  CH 3 CHO , C 2 H 5 OH , C 2 H 5 COOCH 3

B.  CH 3 CHO , C 6 H 12 O 6 glucozo , CH 3 OH

C. CH 3 CHO , C 2 H 5 OH , CH 3 OH

D.  CH 3 CHO , CH 3 OH , C 2 H 4 OH 2

Read the following passage and mark the letter A, B, C, D on our answer sheet to indicate the correct word (s) for each of the blanks     

One of the most beautiful parts of Britain is the Lake District. The Lake District is situated in the north-west of England and consists of high hills, mountains and, of course, lakes. In all, there are 16 lakes, of (41)_____ the largest is Lake Windermere. Over the years many writers have been (42)_____ with this region but there can be no (43)_____ that the most famous of all was William Wordsworth (1770-1850), who was born and lived almost the whole of his life there. He had close connections with the village of Grasmere, where he lived for some thirteen years. He loved this particular part of England and many of his poems of the joy he felt when surrounded by beautiful countryside

          Every year more than 14 million people from Britain and abroad visit the Lake District to enjoy the fresh air and the scenery. Some go to walk in the mountains while others sail boats on the lakes or simply sit admiring the (44)_____ views. Unfortunately, the region is becoming a victim of its own success in attracting visitors. (45)____ come to the Lake District that they threaten to destroy the peace and quite which many are searching for there

Điền ô số 45

A. Such many people 

B. So few people

C. So many people

D. Such people

Phản ứng nào dưới đây có sản phầm là xeton?

A.  CH 3 CHCl + NaOH

B.  CH 3 CCl 2 CH 3 + NaOH

C.  CH 3 CH 2 CH 2 Cl + NaOH

D. CH 3 CH 2 CHCl 2 + NaOH