800 câu trắc nghiệm Điền từ Tiếng Anh có đáp án - Phần 9

In total of 14.000 experiments (4)________ globally, the teenagers (5)________ sensed when they were being watched almost 81% of the time.

14/35

In total of 14.000 experiments (4)________ globally, the teenagers (5)________ sensed when they were being watched almost 81% of the time.

controlled through

worked over

carried on

carried out

Giải thích

D là đáp án đúng