The ambulance was just arriving, for a worker, who ______ the window on the second floor, fell off the window.
| A．had been repairing | B．was repairing |
| C．has been repairing | D．would be repairing |
If you happen to get lost in the wild, you’d better stay ______ you are and wait for help.
| A．why | B．where | C．who | D．what |
-Did you catch what I said?
-Sorry. Ia text message just now.
| A． | had answering | B． | have answered | C． | would answer | D． | was answering |
I looked up and noticed a snake ______ its way up the tree to catch its breakfast.
| A．to wind | B．wind | C．winding | D．wound |
The hotel is almost finished, but it _____ needs one or two weeks to get ready for guests.
| A．only | B．also | C．even | D．still |
Tom took a taxi to the airport, only _____ his plane high up in the sky.
| A．finding | B．to find | C．being found | D．to have found |