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Thời gian
Học thông qua thực hành
listening
spelling
comprehensive
BÀI 1
o'clock
listening
spelling
comprehensive
BÀI 2
at, around
listening
spelling
comprehensive
BÀI 3
What time...?
listening
spelling
comprehensive
BÀI 4
by, before, from...to...
listening
spelling
comprehensive
BÀI 5
hour, minute