--- Is Bob still performing?
--- I’m afraid not. He is said _______ the stage already, as he has become an official.
| A．to have left | B．to leave |
| C．to have been left | D．be leaving |
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 |
He kept looking at her, wondering whether he _____ her somewhere.
| A．saw | B．has seen | C．sees | D．had seen |
When the soldier _____ his shirt, he discovered that his arms were black and blue.
| A．took on | B．took over | C．took in | D．took off |