1.From at nine in the morning until four in the afternoon Mr.Tuan works in the fields with his father
=> bỏ "at"
2.Ba is in the class 7A and he enjoys the school very much.
=> the -> his
 

they'll have their cars mended tomorrow

1. h
2. a
3. c
4. g
5. b
6. e
7. d
8. f

2. Do you have __many__ eggs left in your fridge?

3. There's _an_ apple on the table.

4. Wait! How __much_ oil are you putting in that pan?

5. He ate _a__ sandwich for lunch.

6. I don't want _much_ butter on my sandwiches.

7. Did you buy milk? Yes, __the_ milk is in the fridge.

8. Oh no! I bought too _many_ vegetables!

1. C
2. E
3. F
4. A
5. B
6. D

1. Côn trùng chiên is one of the _strangest_ foods in Ho Chi Minh City. 

2. Some _insects_taste like fish. 

3. The insects are very __crunchy__.

4. We often eat côn trùng chiên from a __bowl_.

5. The insects are not only tasty, but they are _healthy__too.

1. a
2. an
3. the
4. the
5. a
6. a
7. the

\(\dfrac{5}{x-2}=\dfrac{10}{16}\) 

\(\Leftrightarrow5\cdot16=\left(x-2\right)\cdot10\) 
\(\Leftrightarrow80=10x-20\) 
\(\Leftrightarrow10x=20+80\) 
\(\Leftrightarrow10x=100\) 
\(\Leftrightarrow x=\dfrac{100}{10}=10\)