He is very_____; it is impossible to talk him into doing anything he doesn’t want to.
A. stubbornB. curiousC. skeptical D. gracious
It was only then ______ I began to have d
oubts about whether my story had ever been told.
A.
whenB. SinceC. thatD. yet
The secretary worked late into the night, ______ a long speech for the president.
A. to prepareB. prepared C. preparing D. to be prepared
There is no doubt _______ nearsightedness is a serious problem among the youth of our country.
A. / B. which C. whetherD. that
You needn’t have ________ the speaker when he was speaking; there was enough time afterwards for you to ask questions.
A. affectedB. interrupted C. involvedD. disturbed
It’s helpful to put students in a situation _______ they can learn how to cooperate with each other.
A. thatB. when C. which D. where
