— They speak perfect English. How long have they learnt it?
— ______ they were seven years old.
| A．When | B．Since | C．After | D．Until |
Put it down, Jim. You mustn’t read ______letter.
| A．else anyone’s | B．anyone’s else |
| C．anyone else’s | D．anyone else |
_______, Coca-Cola began to enter China’s market.
| A．In 1970’s | B．In 1970s |
| C．In the 1970s’ | D．In the 1970s |
We are doing much better _____English ______our teacher’s help.
| A．in; at | B．at; in |
| C．in; with | D．with; with |
—Look! The man at the gate _______be our headmaster. He is always standing there every morning.
—No, it_______ be him. He is holding a meeting in the office now.
| A．must; can’t | B．must; mustn’t |
| C．can’t; can’t | D．can’t; mustn’t |
—Your watch looks so nice. It must be expensive.
—No. I ____ 20 yuan on it.
| A．cost | B．paid |
| C．took | D．spent |