There is a policeman _____ the bus. He is watching the traffic.

There were more than four ________ passengers on the ship named Eastern Star(东方之星) when it sank.

anted to tell him that she didn’t want to do that, but she didn’t know how to ________ it

Roger had just walked into his office and that was when he was told that his plan had finally been approvedWhich of the following can be instead of the underlined(划线的) part to make the sentence better

Who did it better, Bill or Henry—-I think Bill did just ______ Henry.