We must ________ ourselves and _______ our work.
| A．strict in ; with | B．be strict in ; with |
| C．be strict with ; in | D．strict with ; in |
—Where ______ the lion come from?
—_______.
A. is；America B. does；American C. does；America
_______ is pandas' favourite food.
A. Bamboo B. Fruit C. Grass
Which is different from the others?
A. Asia. B. Europe. C. Japan.
The kangaroo likes to eat ________ .
A. leaf B. leafs C. leaves
The snake lives ________ grassland.
| A．on | B．in | C．at | D．to |