A.since | B.what | C.when | D.whether |
A.whether; that | B.that; that | C.if; when | D.what; whether |
A.where | B.which | C.that | D.when |
A.that | B.where | C.which | D.while |
A.when | B.that | C.since | D.while |
A.which | B.as | C.that | D.what |
© 2017-2019 超级试练试题库,All Rights Reserved.