The American girl       father is an engineer is my pen friend．

Is          some German friends visited last week ?

A．this school where	B．this the school where
C．this the school	D．this school

Winter is the time of the year     the days are short and nights are long．

Remember that there is still one point ____ we must make clear at the conference tomorrow.

The girl arranged to have piano lessons at the training centre with her sister ____ she would stay for an hour.

The students will discuss a number of cases ____ beginners of English fail to use the language properly.

If the man is only interested in your looks,         just shows how shallow he is.

QQ, ________ you can chat with your friends, makes communication easy.

More and more college graduates,      the survey shows, feel it hard to find a satisfactory job.

Used to TV shows, ________ everything is quick and entertaining, many people do not have the patience to read a book that requires thinking．