11. The public service announcement called for volunteers to ______ time to look after the sick in the local hospital.
A. donate B. recede C. direct D. fight
12. People often grow flowers and vegetables in a _______.
A. green house B. greenhouse C. light house D. lighthouse
13. A flying car can reach 120 km per hour _________.
A. in the air B. on the runway C. on the ground D. in the test flight
11. The public service announcement called for volunteers to ______ time to look after the sick in the local hospital.
A. donate B. recede C. direct D. fight
12. People often grow flowers and vegetables in a _______.
A. green house B. greenhouse C. light house D. lighthouse
13. A flying car can reach 120 km per hour _________.
A. in the air B. on the runway C. on the ground D. in the test flight