By the time Jack returned home from England, his son_____ from college.
| A．graduated | B．has graduated |
| C．had been | D．had graduated |
. —Would you like to come to dinner tonight？
—I’d like to, ___ I’m too busy.
| A．and | B．so | C．as | D．but |
. —I don’t like chicken _______ fish.
—I don’t like chicken, _______ I like fish very much.
| A．and, and | B．and, but | C．or, but | D．or, and |
. It shocked me to see ______ my neighbors treated their children.
| A．why | B．whether | C．how | D．since |
. I firmly believe _____ he said at the meeting was right.
| A．that | B．which | C．that what | D．what that |
. “_____ when does the pub stay open？” “About midnight.”
| A．Since | B．Before | C．Until | D．After |