It was the building of the rail network from the west to the east coast ________ brought even larger numbers to California in the 1860s.
| A．that | B．what | C．how | D．which |
The young man was often seen ____ by the lake.
| A．to draw | B．to drawing | C．draw | D．drew |
____ English is much easier than speaking it.
| A．Read | B．To read | C．Reading | D．Reads |
Some students from Grade 9 ____ do some ____ for the old.
| A．volunteered to; clean | B．volunteered; cleaning |
| C．volunteered to; cleaning | D．volunteered; clean |
Would you mind ____ because there’re so many children ____ here?
| A．smoke; play | B．smoking; playing |
| C．not smoking; play | D．not smoking; playing |
They are looking forward to ____ all over the world.
| A．travel | B．traveled | C．traveling | D．be traveled |