. 一When shall we restart our business?
一Not until we our plan.
| A．will finish | B．are  finishing |
C．are to finish | D．have finished |
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 |