13. - I'd like to invite you to dinner this Saturday, Mr Smith. - ________. A. Oh, no, let's not B. I'd rather stay at home C. I am very sorry, but I have other plans D. Oh, no, that will be too much trouble 14. - Would you like to come to the dinner party here on Saturday? - Thank you. I'd love to, ________I'll be out of town at the weekend. A. because B. and C. so D. but 15. Jimmy caught the school bus, ________. A. and Jane didn't either B. but so did Jane C. and Jane didn't neither D. but Jane didn't 16. - Would you like to come to dinner tonight? - I'd like to, ________I am too busy. A. and B. so C. as D. but 17 Although he is considered a great writer, ________. A. his works are not widely read B. but his works are not widely read C. however his works are not widely read D. too his works are not widely read 18. Someone called me up in the middle of the night, but they hung up ______ I could answer the phone. A. as B. since C. until D. before
19. It ______ long before we______ the result of the experiment. A. will not be; would know B. is; had known C. will not be; know D. is; knew 20. -What was the party like? -Wonderful. It's years________ I enjoyed myself so much. A. after B. before C. when D. since 21. ________ you have seen both fighters, ________ will win? A. Since; do you think who B. As; who you think C. When; whoever D. Since; who do you think
