He can on the bed with his ____. A: closed eyes and his mouth open B: eyes closed and his open mouth C: closed eyes and open his mouth D: eyes closed and his mouth open

Which type(s) of economies interact with other economies?? neither closed nor open economies|closed economies and open economies|only closed economies|only open economies

Pronouns, prepositions, conjunctions articles are ___________ . A: open class words B: closed class word C: oth open class words and closed class word D: neither open class words nor closed class word

Closed playtests are only available to the employees, while open playtests are open to the public.

The noise of desks___could be heard out in the street. A: opened and closed B: to be opened and closed C: being opened and closed D: having been open and closed

The store closed down but it will ______ next month. (OPEN)

At the beginning of the class,the noise of desks ________could be heard outside the classroom. A: opened and closed B: to be opened and closed C: being opened and closed D: to open and close

A．openedB．closedC．openD．close A: opened B: closed C: open D: close

Walking on a crowded sidewalk is an example of which system () A: Closed B: Open

Closed questions are easier to process, but open questions will collect a wide range of responses.