Tony ______ his homework this morning before he went to school.
| A．has done | B．did | C．has done | D．will do |
Joe，who is ______ success as a writer，will give us ______ lecture on Dickens tomorrow.
| A．a；a | B．a；不填 | C．不填；a | D．不填；不填 |
When it comes to the human tendency to use the right hand much more often than the left hand, we seem to have __________ it from our animal ancestors, namely monkeys and chimpanzees.
| A．succeeded | B．acquired | C．inherited | D．attained |
Jim, I am sure __________ we met, we were at a rock concert, and since then we’ve known each other.
| A．for the first time | B．the first time | C．at the first time | D．at the time |
--- Ouch! You stepped on my toe!
--- I’m sorry, I didn’t __________.
| A．mean to | B．mean to do | C．mean to have | D．mean to step |
I wonder when it was __________ you came to realize __________ he said meant.
| A．that; what | B．what; that | C．what; what that | D．that; what what |