__________ these tips, and your time _______ doing research on the Internet _________ much worthwhile.
| A．Following, will spend, is | B．Followed, spent, was |
| C．Follow, spent, will be | D．To follow, spending, has been |
They _______ on the program for almost one week before I joined them, and now we ________ it as no good results have come out so far.
| A．had been working; are still working | B．had worked; were still working |
| C．have been working; have worked | D．have worked; are still working |
David has won the first prize in singing; he is still very excited now and feels________ desire to go to bed.
| A．the most | B．more | C．worse | D．the least |
________ in the mountains for a week, the two students were finally saved by the local police
| A．Having lost | B．Lost | C．Being lost | D．Losing |
---- Is Bob still performing?
---- I'm afraid not. He is said________ the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |
---- How about putting some pictures into the report?
----________A picture is worth a thousand words.
| A．No way. | B．Why not? | C．All right? | D．No matter. |