Is oxygen the only gas _______ helps fire burn?
| A．that | B．/ | C．which | D．it |
I argued with my parents until they finally ______ and let me drive every day.
| A．gave off | B．gave out | C．gave in | D．gave over |
______, he can cook a meal.
| A．Child as he is | B．He is a child |
| C．Child is he | D．A child he is |
______ late in the morning, Bob turned off the alarm.
| A．To sleep | B．Sleeping | C．Sleep | D．Having sleep |
He gained his ______ by printing ______ of famous writers.
| A．wealth, work | B．wealthy, works |
| C．wealthy, work | D．wealth, works |
We worried about ______ he was in good health.
| A．whether | B．if | C．that | D．what |