--Do you know what caused the accident? --- No, not yet. The matter _____.
| A．is being looked into | B．was being looked into | C．looked into | D．is looked into |
We were in _____ when we left that we forgot the airline tickets.
| A．a rush so anxious | B．a such anxious rush |
| C．so an anxious rush | D．such an anxious rush |
Sometimes we are asked _____ the likely result of an action will be.
| A．that we think | B．what we think |
| C．what do we think | D．that what we think |
With his money _____, he couldn’t go home.
| A．leaving | B．missed | C．running out | D．run out |
Cleaning women in big cities usually get _____ by the hour.
| A．pay | B．paying | C．paid | D．to pay |
_____ Kate and Joan who taught Tom the nice song last night?
| A．Was it | B．Were there | C．Will it be | D．Must it have been |