Hình 1+2
Ex2
1.1 a/a/-/a/-/a
1.2 -/an/an/-
1.3 a/a/a/a/a
1.4 -/an
1.5 a/a/a/a/a
1.6 an/a/-/an/-/-/a
1.7 a/-/-/-
1.8 -/a
1.9 a/a/-
2.0 a/a/a/the
Ex 3
21 -/a/the/a
22 -/a/an/a
23 -/a/the
24 a/a/a
25 a/a/a
26 a/a/-
27 an/-/an/-
28 -/-
29 the/-/the/-
30 an/a/a/the/a/-
Ex 4
31 a/a/an/a
32 a/a/-/-
33 -/a/a
34 a/a
35 a/a