Bộ 8 Đề thi giữa học kì 1 Tiếng anh 11 có đáp án - Đề 1

The children were warned____________ in the lake without an adult present.

13/34

The children were warned____________ in the lake without an adult present.

not swim

not to swim

not swimming

to not swim

Giải thích

Chọn đáp án B