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giúp mik và có 5*
----- Nội dung dịch tự động từ ảnh -----
the tradition of volunteering and helping one
UNIT 3.1 Americans
another since the early days of the country.
A. have had
C. had
B. has had
a white tiger already.
B. has seen
D. to have
2.My brother and I
A. have seen
D. are seeing
presents to sick children in the hospital recently.
C. see
3.1
blood twice, and
A. donate - give
C. have donated - have given
4.How many novels
A. does - write
B. donated
gave
D. have donated - gave
Charles Dickens
B. have written
C. did - written
D. did - write
5.We
to Ha Noi several times, but last summer we
there by train.
A. flew went
B. has flown - went
D. have flown - went
C. have flown - have gone