It was quite ____ accident that I met him; he was homeless and ___ rags at that time.
| A．by; in | B．on; in |
| C．at; by | D．in; in |
He had no sooner arrived there ________ pestering his doctor.
| A．and then he began | B．when he began | C．to begin | D．than he began |
While s
hopping, people sometimes can't help _______ into buying something they don't really need.
| A．to persuade | B．persuading | C．being persuaded | D．be persuaded |
With no one to ______ in such a frightening situation, she felt very helpless.
| A．turn on | B．turn off | C．turn around | D．turn to |
Heisnotsuchaman_______wouldleavehisworkhalfdone.
| A．that | B．which | C．who | D．as |
_______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having separated |
| C．Having been separated | D．To be separated |