1) is
2) is
3) are
4) is
5) is
6) is
7) is
8) is
9) is
10) are
11) is
12) are
13) are
14) are
15) are
16) are
17) is
18) is
2. No, she isn't
3. No, he isn't
4. No, she isn't
5. Yes, she is
6. Yes, there are
7. No, they aren't
8. Yes, they are
9. No, they aren't
10. No, they aren't
1) is
2) is
3) are
4) is
5) is
6) is
7) is
8) is
9) is
10) are
11) is
12) are
13) are
14) are
15) are
16) are
17) is
18) is
Ex. 52. No, she isn't
3. No, he isn't
4. No, she isn't
5. Yes, she is
6. Yes, there are
7. No, they aren't
8. Yes, they are
9. No, they aren't
10. No, they aren't