100 câu trắc nghiệm Câu điều kiện có đáp án (Phần 4)

If his teeth still …….., he will have to go to the dentist’s again.

19/19

If his teeth still …….., he will have to go to the dentist’s again.

hurt

hurts

to hurt

will hurt

Giải thích

Chọn đáp án A