It is uncertain________side effect the medicine will bring about，although about two thousand patients have taken it.
| A．that | B．what |
| C．how | D．whether |
Tom eagerly finished up was left of the chicken pie.
| A．what | B．that | C．which | D．where |
People who seldom do sports or diet is high in fat will put on weight quickly.
| A．who | B．whose | C．which | D．what |
David won’t get lost—he has a good of direction.
| A．feeling | B．idea | C．experience | D．sense |
Some people try to knock me down, only me more determined to do better.
| A．to make | B．makes | C．having made | D．made |
She removed hat she was wearing and tried on _____ black silk one.
| A．a; a | B．the; the | C．the; a | D．a; the |