They want to develop a kind of dog-friendly food_________ will help dog owners cool downtheir pets.
A: who
B: what
C: which
D: whether
A: who
B: what
C: which
D: whether
举一反三
- What is a guide dog A dog trained to help ______.
- 命令：>;>;>;pets=('dog','cat','bird','dog')>;>;>;pets.index('dog')执行结果为： A: 0 B: 1 C: 2 D: 3
- If someone asks about the "breed"of your dog, they want to know the ________________. A: age of the dog B: sex of the dog C: type of dog D: name of the dog
- 中国大学MOOC: Many dog owners tend to think that dog training( ).
- There was nothing _____ could be done now; his dog would have to die slowly and painfully. A: which B: that C: who D: what