Đề kiểm tra: Practice test 1 có đáp án

It’s easy to get the coronavirus germs from inside your body on your hands (28) ________

28/40

It’s easy to get the coronavirus germs from inside your body on your hands (28) ________ you touch your nose or your mouth.

what

when

which

unless

Giải thích

Chọn đáp án B