I _____ you yesterday, but you weren’t in.
| A．rang | B．rang to |
| C．rang with | D．rang to |
Sex education is a sensitive area for some parents, and thus it should remain _________.
| A．random | B．previous | C．optional | D．vital |
A _______ number of mothers with young children are stopped from undertaking paid work because they lack access to childcare.
| A．considerate | B．critical | C．fundamental | D．substantial |
All the employees complain that their boss is just _______ with promises but never with money.
| A．liberal | B．literary | C．innocent | D．impressive |
Mr. Richard was disappointed that many students who had signed up for his adventure course _______ at the last moment.
| A．left out | B．got out | C．passed out | D．dropped out |
Jeremy Lin has scored 166 points in seven games and his fame is sweeping the US, which means that his career has _______.
| A．paid off | B．taken off | C．put off | D．call off |