(In the following topic sentence, the controlling idea is "Digitalization".)Digitalization makes it easy for people to get access to the reading material.
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The CONTROLLING IDEA in the sentence “There are several advantages to read extensively” is__________.
A. why should we read extensively
B. there are
C. several advantages
D. to read extensively
The TOPIC in the sentence “Air pollution in Beijing is due to a number of reasons” is__________.
A. due to
B. air pollution in Beijing
C. the reason for air pollution
D. a number of reasons
The TOPIC in the sentence “Guangzhou and Shanghai share a lot in common” is__________.
A. Guangzhou
B. Guangzhou and Shanghai
C. Shanghai
D. share a lot in common
The CONTROLLING IDEA in the sentence “Our trip to the Great Wall last weekend is an unforgettable experience” is__________.
A. our trip to the Great Wall
B. experience
C. last weekend
D. unforgettable