______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west．
| A．That | B．When | C．Where | D．Though |
The news reporters hurried to the airport,only_______the film stars had left.
| A．to tell | B．to be told | C．telling | D．told |
Helen had to shout_____.
| A．making herself | B．to making herself hear |
| C．making herself heard | D．to make herself heard |
Having been attacked by terrorists,______.
| A．doctors came to their rescue | B．the tall building collapsed |
| C．an emergency measure was taken | D．warnings were given to tourists |
The murderer was brought in, with his hands ______behind his back.
| A．being tired | B．having tied | C．to be tied | D．tied |
I’ve worked with children before,so I know what______in my new job.
| A．expected | B．to expect | C．to be expected | D．expects |