I.     Right from the beginning of May, many localities in Bac Giang promptly let students leave school     (25)         study online at home. Students at all levels experienced the second "Covid season" with many disturbances in learning and living. Especially, the number of children
 
        (26)          
 
must be isolated at home in areas under             (27)              
 
distancing and
 
concentrated quarantine facilities has continued to increase.
Many children were forced to be quarantined far away       (28)       home and many others fell into difficult circumstances. In addition to the risk of infection and having to be independent in daily life, they are also at high risk of mental trauma and psychological crisis.
(Adapted from https://en.vietnamplus.vn/)
Câu 25:
 
A. nor
B. .or
C. and
D. but
 
Câu 26:
 
 
 
 
A. whose
B. which
C. who
D. whom
 
Câu 27:
 
 
 
 
A. sociable
B. society
C. social
D. sociably
 
Câu 28:
 
 
 
 
A. for
B. at
C. from
D. in