1. A. pleasant              B. health                      C. healthy                    D. breathe

• A

• B

• C

• D

2. A. come                   B. roll                          C. comb                       D. grow

• A

• B

• C

• D

3. A. fear                     B. realize                     C. pear                         D. near

• A

• B

• C

• D

4. A. inventor              B. president                 C. adventure                D. genetics

• A

• B

• C

• D

5. A. adopt                   B. front                        C. column                   D. borrow

• A

• B

• C

• D

6. A. throw                  B. though                    C. thick                       D. thought

• A

• B

• C

• D

7. A. check                  B. cheese                     C. chemistry                D. cherry

• A

• B

• C

• D

8. A. pesticide             B. impact                     C. focus                       D. practical

• A

• B

• C

• D

stress

1. A. protection                       B. charity                    C. chemical                 D. neighbourhood

• A

• B

• C

• D

stress

2. A. submarine                       B. assignment             C. disposal                  D. depletion

• A

• B

• C

• D