They are too busy with their work. They really want to go for a picnic. A. Provided that they aren't busy with their work, they can't go for a picnic. B. If they hadn't been busy with their

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They are too busy with their work. They really want to go for a picnic.

Provided that they aren't busy with their work, they can't go for a picnic.

If they hadn't been busy with their work, they couldn't have gone for a picnic.

They wish they weren't busy with their work so that they could go for a picnic.

If only they hadn't been busy with their work, they couldn't have gone for a picnic.

Giải thích

Họ quá bận rộn với công việc. Họ thật sự muốn đi dã ngoại.

A. Sai vì phải dùng câu điều kiện loại 2.

B. Sai vì phải dùng câu điều kiện loại 2.

C. Họ ước mình không bận rộn với công việc để có thể đi dã ngoại.

D. Sai vì phải dùng câu điều kiện loại 2.

→ Chọn đáp án C