High school students should be given enough sleeping time , _______ they are busy with their study .
| A．even so | B．as though | C．as if | D．even if |
_____ 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 |
_____ their inexperience， they’ve done a good job.
| A．Given | B．To give | C．Giving | D．To have given |
I can make myself _____ in French， but I’m not fluent.
| A．understood | B．understand |
| C．to understand | D．being understood |
The trip cost a total of 250 dollars， insurance _____.
| A．including | B．included | C．to include | D．being included |
The waiter greeted me with a big smile and _____ us by the window.
| A．seating | B．seated | C．to seat | D．being seated |