Three trees can do the job of 15air-conditioners _________ almost all day.
| A．run | B．are running | C．ran | D．running |
In spring, we can often hear some birds_______ in our school.
| A．singing | B．sing | C．to sing | D．sings |
- Bob, can you read the number 2,357,018?
- Yes, I can. It's_______.
| A．two million, three hundred and fifty-seven thousand, and eighteen |
| B．two million, three hundreds and fifty seven thousand, and eighteen |
| C．two million, three hundred and fifty-seven thousands, eighteen |
| D．two millions, three hundred and fifty-seven thousands, eighteen |
Moscow is in．
| A．the UK | B．France | C．Russia | D．the USA |
_______ girl with_______ MP4 in her hand is my best friend, Lucy.
| A．The; an | B．The; a | C．A; an | D．A; the |
| A．whose | B．white | C．what | D．where |