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I. Choose the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Question 1.
A. classroom
B. bank
C. backpack
D. landscape

Answer: B (bank) - The vowel sound in "bank" is /æ/, while the others have the vowel sound /a/.
Question 2.
A. uniform
B. suburbs
C. luck
D. sun

Answer: C (luck) - The "u" in "luck" is pronounced as /ʌ/, while the other words have /juː/.
Question 3.
A. waterfalls
B. rivers
C. islands
D. lakes

Answer: D (lakes) - The "a" in "lakes" is pronounced /eɪ/, while the others have a short /ɪ/ or /ɪə/ sound.
Question 4.
A. hospital
B. library
C. cinema
D. office

Answer: C (cinema) - The "i" in "cinema" is pronounced /ɪ/, while the others have /ɒ/ or /a/.
Question 5.
A. sink
B. sugar
C. suncream
D. plaster

Answer: A (sink) - The "i" in "sink" is pronounced /ɪ/, while the others have the "u" sound /ʊ/ or /ə/.
II. Find one word which does not belong to each group.
Question 1.
A. island
B. compass
C. mountain
D. waterfall

Answer: B (compass) - The other words (island, mountain, waterfall) are natural features, while a compass is a man-made object.
Question 2.
A. bathroom
B. bedroom
C. kitchen
D. cathedral

Answer: D (cathedral) - The other words are types of rooms in a house, while a cathedral is a place of worship.
Question 3.
A. lake
B. river
C. valley
D. lucky money

Answer: D (lucky money) - The other words (lake, river, valley) are geographical features, while "lucky money" is a cultural practice.
Question 4.
A. beautiful
B. funny
C. kind
D. confident

Answer: B (funny) - The other words (beautiful, kind, confident) describe personality traits or qualities, while "funny" describes a sense of humor.
Question 5.
A. fireworks
B. peach flowers
C. literature
D. spring

Answer: C (literature) - The other words (fireworks, peach flowers, spring) are related to festivals or seasons, while "literature" is an academic subject.
III. Choose the best answer A, B, C, or D to indicate the correct answer to each of the following sentences.
Question 1.
Look! Many_____ are playing pickleball in the stadium.
A. peoples
B. persons
C. people
D. person

Answer: C (people) - "People" is the plural of "person" and is used for groups of individuals.
Question 2.
Phu Quoc and Con Dao are famous_____ in Viet Nam.
A. caves
B. cave
C. islands
D. island

Answer: C (islands) - "Phu Quoc" and "Con Dao" are both islands.
Question 3.
_____ children often _____ lucky money at Tet?
A. Does...receive
B. Do...receive
C. Is...receive
D. Are...receive

Answer: B (Do... receive) - "Children" is plural, so "do" is used, and the correct verb form is "receive."
Question 4.
What _____ at the moment? She is reading books in the school library.
A. is Jenny doing
B. does Jenny doing
C. is Jenny do
D. does Jenny do

Answer: A (is Jenny doing) - The correct structure for the present continuous tense is "is + V-ing."
Question 5.
You _____ put the trash in a bin. You _____ throw it in the classroom.
A. should...shouldn't
B. mustn't...mustn't
C. can't...can
D. shouldn't...shouldn't

Answer: A (should...shouldn't) - "Should" is used to give advice, and "shouldn't" is used to indicate what is not allowed.