The boy talked his mother ________ buying him a home computer.

A．of           B．over             C．to              D．into

Every time Ashtita tries to break a record, he reaches a point ______ he feels he cannot physically do any more．

A．where           B．that             C．when          D．which

Was it through Mary,_____ was working at a high school, ____ you got to know Tom?

A．who; who        B．that; which            C．who; that               D．who; which

He made another wonderful discovery, ______ of great importance to science.

A．which I think is                                 B．which I think it is

C．which I think                                          D．I think which is

Robert is said ___________ abroad, but I don’t know what country he  studied in.

A．to have studied                                    B．to be studying

C．to study                                         D．to have been studying

In China, all the students work hard at school _________ going to university for higher education in the future．

A．in the habit of                                     B．in the hope of

C．in search of                                       D．in honor of

It was a matter of________ would take the position.

A．who           B．whoever             C．whom         D．whomever

_____the Internet is of great help, I don’t think it ‘s a good idea to spend too much time on it．

A．If          B．While           C．Because         D．As

_____ unemployment and crime are high, it can be assumed that the latter is due to the former．

A．Before           B．Where         C．Unless         D．Until

From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.

A．when            B．until      C．since           D．before