______ by a greater demand of vegetables, farmers have built more green houses.
| A．Driven | B．Being driven | C．To drive | D．Having driven |
If there’s a lot of work _____, I’m happy to just keep on until it is finished.
| A．to do | B．to be doing | C．done | D．doing |
The bank is reported in the local newspaper _____ in broad daylight yesterday.
| A．being robbed | B．to have been robbed | C．robbed | D．having been robbed |
The firm is now in the _____ of moving the main equipment to new place.
| A．process | B．action | C．development | D．direction |
Without proper lessons, you could _____ a lot of bad habits when playing the piano.
| A．give up | B．catch up | C．pick up | D．keep up |
It suddenly _____ to me that we could ask our neighbors to help us.
| A．thought | B．happened | C．came | D．occurred |