—I'm wondering why the visitors chose to stay with the local family.
—__________ real local life.
| A．Experiencing |
| B．Experience |
| C．To experience |
| D．Having experienced |
In ____late 19th century, computers changed _____great deal and were widely used______international trade.
| A．the; a; the | B．the; the;不填 | C．the; a; an | D．the; a; 不填 |
To see if his new bike works properly, Jane could hardly wait to _____.
| A．turn it out | B．carry it out | C．try it out | D．work it out |
The doctor told me that you just had a strange cold , so you can______.
| A．take it seriously | B．take it easy | C．take your time | D．take your chance |
Had it been possible I would have gone to the movies but I _____ busy.
| A．had been | B．am | C．was | D．would be |
_____ your advice, I would have had no trouble with my papers.
| A．Had I followed | B．If I followed | C．If I have followed | D．Once I followed |