—What do you think of the 3D-printed ______?
—I’m afraid they are not safe enough to live in.
| A．tools | B．buildings | C．cars | D．toys |
None of us _________ pollution.
A. like B. likes C. except
My uncle asked me ________ I ________ better or not.
A. whether , feel B. if , feeling C. whether ,felt
----The program _________ them ________ houses.
A. provide, to B. provides , for C provides, with
They don’t go to walk every evening, ________ does he .
A. So B. Neither C. Such
I _________ him for a long time .
A. didn’t seen B. haven’t seen C. will see