We first met on a train in 2010，but we both felt immediately that we ________ each other for years.
| A．knew | B．have known |
| C．had known | D．know |
The number of people in the world__________ about 6 billion and large quantities of waste ____ each year.
| A．total; has been produced | B．totals; is produced |
| C．totals; are produced | D．total; are being produced |
When the movie Twilight __________, it topped best-seller lists for many months.
| A．came across | B．came about | C．came out | D．came up |
---- Mary quitted the job again last week.
---- Why did she do a thing like that? It seems to make no__________.
| A．comment | B．sense | C．meaning | D．difference |
.You can have _________ second try if you fail______ driving test this time.
| A．the; a | B．the; the | C．a; the | D．a;/ |
---How long are you staying?
---I don’t know. ___________.
| A．That’s OK. | B．Never mind | C．It depends | D．It doesn’t matter |