＿＿＿＿four years since I joined the army.
| A．There was | B．There is | C．It was | D．It is |
A new subway ________ in Changsha and it will be open to traffic when completed next year.
| A．has built | B．has been built |
| C．is building | D．is being built |
My parents always ________ great importance ______ receiving good education.
| A．pay; back | B．apply; to |
| C．attach; to | D．get; across |
The film star wears sunglasses. ________, he can go shopping without being recognized by fans.
| A．Therefore | B．However |
| C．Otherwise | D．Besides |
Studies indicate that people are more _______ to suffer from back problems if they sit before computer screens for long hours.
| A．possible | B．likely | C．sure | D．certain |
A former CCTV presenter ________ Chai Jing has released a documentary “Under the Dome”, which is inspired by her sick daughter.
| A．called | B．calling |
| C．calls | D．is called |