A pencil has teeth marks on it.
A: The person who used the pencil was nervous.
B: The pencil was chewed up by a toddler or pet.
C: Someone or something chewed the pencil.
D: The pencil belongs to someone who is trying to quit smoking.
A: The person who used the pencil was nervous.
B: The pencil was chewed up by a toddler or pet.
C: Someone or something chewed the pencil.
D: The pencil belongs to someone who is trying to quit smoking.
举一反三
- Who has got a pencil A: Jane. B: B. Jerry. C: Jack.
- There is a pencil on the floor. Who ____ it up? A: pick B: is picking C: picks D: is going to pick
- She took out a pencil and ______ of it.
- ________of the boys has got a pencil and some paper.
- A country produces only pencils and erasers. Pencil production is allocatively efficient if the marginal ________ of a pencil equals the marginal ________ of ________. A: cost; benefit; an eraser B: cost; cost; an eraser C: benefit; benefit; an eraser D: benefit; cost; a pencil