I can’t get my car__________on cold mornings，so I have to try__________the radiator with some hot water.
| A．run；to fill | B．running；filling |
| C．running；to fill | D．ran；filling |
.Without any doubt, depression________can create a variety of negative health effect.
| A．ahead | B．partly | C．alone | D．along |
________passenger plane crashed near Gazvin, Iran and all 168 people on________board were killed.
| A．A; a | B．A; / | C．The; the | D．The; a |
--How often do you drop your English teacher a line?
---________. But usually once a week.
| A．As usual | B．It depends | C．Generally speaking | D．Have no idea |
Some English scientists are identifying problems ____ technology in the 21st century. If solved, the solutions could change the world.
| A．facing | B．faced | C．being faced | D．having faced |
Exactly ____they did when at last they reached the sea remains a complete mystery.
| A．that | B．how | C．which | D．what |