Question

まほ

何度もすいません。わからないのであっているか教えてください。

(27) Not only(  ),butthey stayed until the end of the party.

①they go ②cthey went (Gid they go ④①havethey gone    (関東学院女子短犬)
(@8) Not until a stadent has mastered algebra(  )tounderstand the prineiples of physicB.

Ohe or she can begin (⑳can he or she begin he or she begins ①begine    (東交大)
(G9) On the wall opposite the door ( ) three paintinge.

① were  ②hanging (③ displayed  ④ displaying