It's necessary to be prepared for a job interview. __________ the answers ready will be of great help.
| A．To have had |
| B．Having had |
| C．Have |
| D．Having |
_______ for the coming examinations before, I have no time for the film.
| A．Not preparing | B．To prepare |
| C．Having not prepared | D．Not having prepared |
The books _______ belong to Mr. Smith.
| A．which is on the table | B．lying on the table |
| C．are on the table | D．which on the table |
How little Franz regretted the days ______ playing in the woods and fields.
| A．which wasted | B．wasted | C．having wasted | D．which is wasted |
They _____ be at home. You see, the door is locked from the outside.
| A．may | B．must | C．mustn’t | D．can’t |
______ you return those books to the library immediately, you will have to pay a fine.
| A．Until | B．Unless | C．If | D．Provided |