Only when he reached the tea-house ______ it was the same place he’d been in last year.
| A．he realized | B．he did realize |
| C．realized he | D．did he realize |
Many people can’t learn lessons from the mistakes they’ve made_____they get hurt somehow.
| A．whether | B．unless | C．if | D．as |
We shall not start the project until it_____ by the committee.
| A．will be approved | B．has been approved |
| C．approves | D．is to approve |
----Why did the general insist_______ a visit to the small village?
----It was at the very place______ he fought 30 years ago.
| A．on paying, that | B．to pay, in which |
| C．on paying, where | D．to pay, which |
-- How was your trip to London ?
-- Great. I was helped by an organization. Otherwise, I _____ it.
| A．wouldn’t afford | B．hadn’t afforded |
| C．wouldn’t have afforded | D．needn’t have afforded. |
There is no greater pleasure than running on the playground, ____ after a ball.
| A．chased | B．chasing |
| C．to chase | D．having chased |