The dog ____on the grass to enjoy its bone.
举一反三
- The ( ) keeps the tooth in<br/>place by securing it to the bone. A: crown B: bone C: periodontal ligament
- The ( <br/>) keeps the tooth in<br/>place by securing it to the bone. A: crown B: periodontal ligament C: bone
- The<br/>( <br/>) keeps the tooth in place by securing it to the bone. A: crown B: periodontal ligament C: bone
- The dog will a trick if you give him a bone. A: to do B: doing C: do
- The dog has transferred its _____________ to its new master.