67. They had a boy ______ that yesterday. A. done B. to do C. did D. do 68. We get our mail ______ yesterday. A. been delivered B. delivered C. delivering D. to deliver 69. He appeared ______ something. A. to be looking for B. look for C. looks for D. is looking for 70. Tom hopes _______ a solution soon. A. to be found B. finds C. to find D. finding 71. You must ______ a lot of people here. A. to know B. knowing C. know D. known 72. This involves having a good memory and ______ hard. A. work B. to work C. worked D. working 73. They claimed ______ the problem. A. have solved B. solve C. solving D. to have solved 74. Ive been invited to the party but I dont know ______ or not. A. whether I should to go B. whether go C. whether going D. whether I should go 75. Health experts advise ______ breakfast. A. us not skipped B. us not skipping C. us not to skip D. us not skip 76. I would rather ______ this job. A. not taken B. not take C. not to take D. not taking 77. I spent some time ______ around the shops in Elizabeth street yesterday. A. looked B. be looking C. look D. looking