日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
I think the materials he took time on were convincing.
I think the materials she'd prepared were flawless.
I think the materials I requested still haven't arrived.
I think the first estimate he gave was too high.
I think they won't make the deadline they promised.
I think the approach he proposed is more efficient.
I think the file you sent was really helpful.
I think her proposal is likely to be adopted.
I can't believe I lost an important file.
I heard the file you sent was really helpful.
I can't believe we missed the deadline.
I'm worried I lost an important file.