A ship in harbor is safe, but that’s not ______ ships are built for.
| A．what | B．whom | C．why | D．when |
Lucy is believed to have been killed by a vampire. She was seen ________ Dracula’s castle last week and has never come out.
| A．enter | B．toenter |
| C．entering | D．entered |
I can’t promise that all the people injured in the accident will be saved. All I can promise is that what _______ be done _______be done.
| A．must,should | B．can,can |
| C．will,must | D．can,will |
You _______ get the book on condition that you give it back to me on time.
| A．should | B．must | C．ought to | D．shall |
I would like to _____ this book _____ all those who are interested in traveling.
| A．refer, to | B．prefer, to |
| C．recommend, to | D．deal, with |
We presented small gifts _____all the guests. Some of the ladies were also presented _____ flowers.
| A．with,to | B．to,to |
| C．to,with | D．with,with |