―Look! What a mistake! Why?
―Sorry, I _________ on it.
| A．don’t concentrate | B．hadn’t concentrated |
| C．haven’t been concentrating | D．wasn’t concentrating |
.
— We are moving to Miami next week, Marilyn!
— ________
| A．Take your time. | B．All the best! | C．Well done! | D．That’s OK. |
.
Anyone in the company should be aware ______ his duty and try his best to make contributions.
| A．about | B．of | C．with | D．for |
.
It was only when I reread his poems recently _______ I began to appreciate their beauty.
| A．until | B．when | C．that | D．after |
.
Too much drinking and smoking ________ his early death. Which of the following keys is wrong?
| A．resulted in | B．led to | C．contributed to | D．brought with |
.
The refugees(难民) ran in all directions to avoid _______.
| A．getting bombing | B．getting bombed |
| C．to be bombing | D．to be bombed |