It ____ we had stayed together for a couple of weeks ____ I found we had a lot in common.
| A．was until; when | B．was not until; that |
| C．was not until; when | D．was until; that |
Does the way you thought of ________ the water clean make any sense?
| A．making | B．how to make | C．to make | D．having made |
I failed in the final examination last term and only then ________ the importance of studies.
| A．I realized | B．I had realized | C．did I realize | D．had I realized |
Henry has been looking forward to ________ his present for days, so now all that he’s looking
forward to is ________ whether his father is back home.
| A．see; seeing | B．seeing; seeing | C．seeing; see | D．see; see |
Bobby ________ me your secret, but he meant no harm.
| A．shouldn’t have told | B．should tell |
| C．mustn’t have told | D．could tell |
The speed of cars and trucks is ________ 30 kilometers per hour in large cities in China.
| A．limited | B．limiting | C．limiting to | D．limited to |