Only when I left my parents for Italy, ________how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
Keep on trying,you will find a way out.
| A．so | B．but | C．or | D．and |
By the time Billy was 6, hein the sea.
| A．had already swum | B．was already swimming |
| C．has already swum | D．already swam |
A terrible earthquake with tsunami happened in Japan, more than 10,000deaths.
| A．causing | B．to cause | C．caused | D．having caused |
Mum: Tom?
Tom: ? Here I am.
| A．What | B．OK | C．Yes? | D．All right |
I prefer ________ the movies rather than ________ home.
| A．go to; stay | B．to go to; stay |
| C．going to; staying | D．to go to; staying |