It never _____ humans until the mid1990s that some animals can be cloned.
| A．occur | B．is occurred | C．occurred to | D．occurred |
There is no doubt ______ they all passed the examination.
| A．if | B．which | C．that | D．whether |
— What do you think of Jenny?
— Well. She is pretty, but I don’t like the way ____ she stares at me.
| A．in whi ch | B．that | C．/ | D．all A, B, C |
— Do you agree that lions and tigers ______ the cat family?
— I have no idea.
| A．belong | B．are belonged to | C．are belonging to | D．belong to |
Let’s hold a party to your birthday and at the same time you on your passing the driving test.
| A．congratulate; celebrate | B．celebrate; celebrate |
| C．celebrate; congratulate | D．congratulate; congratulate |
We’ll the test of vocabulary while studying English. Try to enlarge yours by reading.
| A．go through | B．go over | C．go with | D．go up |