17. If Mr. Lu through e-mail. A. will need assistance contacting the speakers for the conference, I'll notify you C. needs B. need 18. He wanted to visit Hong Kong after A. back B. returned 19. If their marketing team succeeds, they _____ A. will have been increased B. would have been increasing D. needed from Europe. C. get back D. returning their profits by 20 percent. C. will increase D. would increase 20. As far as I can recall, the effective tax rate for the previous year 42 percent. A. was C. is B. has been 21. Apartment rental information Az is B. are 22. New practices were established to A. react B. enable 23. A higher average A. interesting B. interest 24. Mr. Lee watched the technician A. repair B. repaired D. will be available at the front office. C. were D. comes investors. C. protect D. enforce rate accounted for about one-third of the financing costs 25. The pension plans cover only domestic employees; make other arrangements. A. moreover C. interested D. interestingly the broken pump. b C. repairs D. had repaired international employees must C. in addition B. even though D. consequently