It’s said that________of the water around the world________polluted．
| A．two third；has |
| B．two thirds；have |
| C．two third；are |
| D．two thirds；is |
Scientists think that there has been life on Earth for _______ years.
| A. millions |
B. millions of |
C. million of |
D. million |
Don’t make any noise. The baby ________ in the bedroom..
| A. sleeps |
B. has slept |
C. slept |
D. is sleeping |
That boy is my good friend. _________ name is Mike.
| A. He’s |
B. He |
C. His |
D. Him |
—Where did you go last night?
—Ito go to Li Lei’s birthday party.
| A．asked | B．am asked | C．have been asked | D．was asked |
—Have a nice time in the summer holiday!
—.
| A．What about you | B．Of course I have |
| C．Yes, I will | D．The same to you |