I'm sorry. I _____________ you__________ to me.
| A．don't know; are speaking |
| B．don't know ;were speaking |
| C．didn't know; were speaking |
| D．didn't know; are speaking |
There ___when we came here last time, which was said to date back to 773 BC.
A. stood a great castle B. does stand a great castle
C. stands a great castle D. did stand a great castle
—Can you see the bridge ___over there?
— Yes. It’s scheduled to be completed next year.
| A．built | B．to be built | C．being built | D．having built |
But for your timely warning, we ___have been unaware of the danger. Thank you very much!
| A．shall | B．must | C．will | D．would |
___some of the juice and perhaps you’ll like it.
| A．Trying | B．To try | C．Try | D．Having tried |
The question that puzzles them is ___they can finish the work on time.
| A．what it is that | B．what is it that | C．how is it that | D．how it is that |