David asked his nephew to ______ his bag while he headed for a drink at the airport.
| A．lose interest in | B．keep an eye on |
| C．look away from | D．keep in touch with |
Her work changed the way _______ people think about chimps.
| A．that | B．in which | C．不填 | D．all of above |
The Voice of America began during the World War Ⅱ, when Germany was broadcasting a radio program to get international ______.
| A．business | B．culture | C．support | D．information |
The officers narrowly escaped ___________in the hot battle.
| A．have killed | B．to kill | C．to be killed | D．being killed |
The children do not know how to _______ themselves decently at the party.
| A．act | B．perform | C．behave | D．advance |
The teacher said there were twelve _____ who had failed in the exam.
| A．at all | B．in all | C．all in | D．all in all |