_____ some of the juice—perhaps you'll like it.
| A．Trying | B．Try | C．To try | D．Have tried |
She didn’t allow the accident to discourage her. On the contrary, she began to work.
| A．as twice hard | B．twice as hard |
| C．twice as harder | D．harder twice |
Thank you for the great effort you _____ to find us the right person for the job．
| A．had | B．got | C．took | D．made |
— You look tired.
— Yes. I ___ non-stop until 8 o’clock this morning.
| A．had worked | B．work | C．have worked | D．was working |
People are living in ___ world where mouse clicks rule our life, so online searches have become _____ must.
| A．the; / | B．/; a | C．a; a | D．a; the |
Here are some Christmas presents, ____you can choose one for yourself.
| A．in which | B．from which | C．between which | D．through which |