The girl was so absorbed _______her studies that she didn’t notice her friend walking towards her.
| A．to | B．at | C．in | D．for |
—Look! Everything here is under construction.
—Oh, has the building once __________ for exhibition been pulled down, too?
| A．being built | B．been built | C．to be built | D．built |
There are still a few jobs to __________ so we cannot be released for the time being.
| A．break off | B．finish off | C．put off | D．clear off |
Our company has a new system to help __________ the best service __________ the customers.
| A．provide; / | B．provide; to | C．provide; for | D．supply; / |
It is in Qingdao __________ you're going to pay a visit to __________ this kind of washing machine is produced.
| A．/; that | B．where; which |
| C．/ J where | D．that; which |
I had neither a raincoat nor an umbrella. __________ I got wet through.
| A．It's the reason | B．That's why |
| C．There's why | D．That's because |