All the scientific evidence ______ that increasing use of chemicals in farming______damaging our health．
| A．show; are | B．shows; are |
| C．show; is | D．shows; is |
Growing evidence shows _______ exercising won’t protect us if we sit too much.
| A．when | B．what |
| C．that | D．whether |
Don’t be afraid of failure．It is just _______ stepping stone to greatness.
| A．other | B．another |
| C．every | D．each |
The Twins Days Festival, _______ began in 1975, is the largest annual gathering of twins.
| A．that | B．which | C．who | D．when |
—Have you started writing your report?
—Not yet．I _______ a hard time getting the information.
| A．am having | B．had |
| C．was having | D．will have |
The rainy weather lasted for a couple of days, completely _______ our plan for a picnic.
| A．being ruined | B．to ruin |
| C．ruined | D．ruining |