单选题 It was really very dangerous; you ____ him seriously.

单选题 ____ the workers insisted on was that they ____ more pay.

单选题 ____ I want to know is ____ it is worth doing.

单选题 By the end of this week, ____ for a month exactly.

单选题 Jane got sick last month and ______ in bed since then.

单选题 The factory ____ I am going to is the place ____my mother used to work many years ago.

单选题 The place ____ you are going to visit is the ruin of a place.

单选题 In the dark street, there wasn't a single person ____ she could turn for help.

单选题 He asked the tailor ____.