Mark the letter A, B, C or D to indicate the correct answer to each of the following question.5. Please, open the window, ______ you?A. doB. willC. mightD. can’t6. “How many products did you sell?” –“_____than we had expected.”A. lessB. lesserC. fewD. fewer7.It’s often difficult for a young child _____ clothes.A. wearingB. to wearC. wornD. is wearing8.The professor was vey interested in the ______ of cultures around the world.A. diversityB. diverseC. diversifyD. diversifying9.The gentleman to _____ we spoke yesterday is making a speech. A. whose B. who C. whom D. which10. Tom came ______ a fantastic idea for the school trip.A. down toB. down withC. over toD. up with11.________ I was really tired, I couldn’t sleep.A. Even thoughB. SoC. ThereforeD. Because of12. His house looks very large and beautiful. It is ______ house.A. a seven-room B. a seven-rooms C. seven room D. seven rooms13.Before I started the car, all of the passengers ______ their seat belts.A. will buckleB. had buckledC. was bucklingD. have buckled