—Will you come to the bars(网吧)with me? 

—Sorry,my mother always tells me _______ there.

                                                                                                                                                        [ ]

A. not go

B. go

C. not to go

D. to go

正常情况下，起钻前要循环钻井液（）。

A、一周

B、一至两周

C、三周

D、三至五周