By the time Jack returned home from England, his son from college.
| A．graduated | B．has graduated | C．had been | D．had graduated |
The living room is clean and tidy, with a dining table already _______for a meal to be cooked.
| A．laid | B．laying |
| C．to lay | D．being laid |
_______ public figures should offer to their fans is honesty and happiness.
| A．Which | B．What |
| C．That | D．Whom |
Peter’s jacket looked just the same as Jack’s, but it cost ______his.
| A．as much twice as | B．twice as much as |
| C．much as twice as | D．as twice much as |
—Why does the lake smell terrible?
—Because large quantities of water_____.
| A．have polluted | B．is being polluted |
| C．have been polluted | D．has been polluted |
Hearing a scream, I rushed downstairs, only ________the hostess lying unconscious on the floor.
| A．seeing | B．having seen |
| C．seen | D．to see |