Strong __________ can be very dangerous for swimmers.
| A．flows | B．columns |
| C．floods | D．currents |
Lucy has a great sense of humour and always keeps her colleagues ______ with her stories.
| A．amused |
| B．amusing |
| C．to amuse |
| D．to be amused |
Look over there – there’s a very long, winding path ______ up to the house.
| A．leading |
| B．leads |
| C．led |
| D．to lead |
It’s no use ______ without taking action.
| A．complain |
| B．complaining |
| C．being complained |
| D．to be complained |
Sarah pretended to be cheerful, ______ nothing about the argument.
| A．says |
| B．said |
| C．to say |
| D．saying |
The lecture, ______ at 7:00 pm last night, was followed by an observation of the moon with telescopes.
| A．starting |
| B．being starting |
| C．to start |
| D．to be started |