Choose the correct answer

mn giúp em với ạ em cảm ơn
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6THisknowledgeof languages and international relations
8.
n bim in his present work.
B. aid
A. aids
C have aided
Tolm happy that everything
A. are
C. is.
8. One of my best friends
A. have
C. does
D. had aided
.... in its place.
B. been
D. have
five credit cards.
B. has
D. do
an emergency arise, call 911.
9.
A. Can
C. Should
10. There
this magnitude.
A. has
C. are
B. Does
D. Will
never been an environmental disaster of
B. have
D. is
Exercise 7
has the work been so easy.
B. Only by
D. For
1.
A. Never
C. When
2. Far too few of us ...
A. have
financial discipline.
В. be
D. has
C. are
3. Both viruses and
A. are
C. were
4. Coffee contains caffeine, and so ...
A. tea did
C. it does
5. Mary, accompanied by her brother on the piano,
very well received at the talent show yestcrday.
A. was
C. have been
3. Much of what you were told
A. are
C. did
genes
made from nucleoproteins:
В. is
D. has been
B. does tea
D. tea does
B. were
D. has been
inaccurate.
B. was
D. done
what is in store for him.
'.
Little....
A. he knows
B. does he know
C. knows he
D. knew he
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