513. It _______ six years since I saw you last.

A. was　　 B. have been　　　 C, is　　　　 D. had been

512. I have ______ works of Shakespeare. I have spent $ 300.

A. completed　 B. a complete　　 C. finished　　 D. a completed

511. I need one more _______ my collection of Bird stamp.

A. to complete　　 B. to have completed　 C. finishing　 D. to have finished

510. Without his help, I ____ the test given on Monday.

A. couldn’t have passed　　　　　　 B. couldn’t pass

C. won’t pass　　　　　　　　　　 D. don’t pass

509. If you are obey the rules ______visitors, you will ____here in our country.

A. for; enjoy　 B. to; enjoy your stay　 C. to; enjoy staying　 D. for; enjoy your stay

508. An expert with 40 workers ______the work. They are supposed to finish the work next week.

A. have started　　 B. start　　 C. has started　　 D. are starting

507. More than one stone ______ so far.

A. have been washed　　　　　 B. has been washed

C. are washed　　　　　　　　 D. had been washed

506. The temple is 20 kilometers _______. Let’s take a _______.

A. away; taxicab ride　　　　　 B. away; taxi’s ride

C. far away; taxi ride　　　 　　D. far away; ride

505. Our guide has organized _________.

A.　　　 a tour of the temple for tomorrow

B.　　　 a tomorrow tour of the temple

C.　　　 tomorrow’s tour of the temple

D.　　 a tour of the temple to tomorrow

504. We are busy all day long, and now there is lots of repair work for us _______.

A. to do it　 B. to be done　　 C. to do　 D. to do them