_______ that he might lose his job, Peter always works extra hours to please his boss.
| A．Worrying | B．Having worried | C．Having been worried | D．Worried |
I do hope the film ______ tomorrow will be much more wonderful than the one _____ yesterday.
| A．to show; shown |
| B．to be shown; being shown |
| C．to be shown; shown |
| D．to show; having been shown |
Do you know the Three Gorges Dam is the largest hydro-electric dam ever_______?
| A．constructed | B．constructing |
| C．to be constructed | D．been constructed |
English is a language shared by several different cultures, but each of ______ uses it somewhat differently.
| A．which | B．what | C．them | D．whom |
Have you ever had the case _______ you can’t recognize your friend’s voice on the phone?
| A．which | B．that | C．where | D．when |
He made another wonderful discovery,_____ of great importance to science.
| A．which I think is |
| B．which I think it is |
| C．which I think it |
| D．I think which is |