There are 40 incomplete sentences in this section. For each sentence there are four choices marked A， B， C and D. Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet.

　　11. Today is Jenny‘s wedding day. She _______ to Thomas.

　　A. just has got married B. has just married

　　C. was just married D. has just got married

　　12. Every officer and every soldier _______ obey the rules.

　　A. had to B. have to C. has to D. must have to

　　13. Rarely _______ so difficult a problem.

　　A. she could have faced with B. could have she faced with

　　C. she could have been faced with D. could she have been faced with

　　14. ______ a dog on the road， the car stopped.

　　A. Having seen B. On seeing C. The driver seeing D. Seeing

　　15. I asked my teacher _______.

　　A. what courses should I take B. should I take what courses

　　C. I should take what courses D. what courses I should take

　　16. Comrade Li promised to help us and he said he would come ______.

　　A. right away B. all at once C. all of a sudden D. all right

　　17. There aren‘t many pandas ________ in the world today.

　　A. alive B. living C. lively D. lived

　　18. Such electron tubes ________ in a radio set are also found in a TV set.

　　A. that we use B. as we use C. as we use them D. that we use them

　　19. It _______ to me that he was jealous.

　　A. happened B. took C. occurred D. felt

　　20. One of the requirements for a fire is that the material ______ to its burning temperature.

　　A. were heated B. must be heated C. is heated D. be heated