Chọn phương án đúng

Câu hỏi

Without your help, I ______ the technical problem with my computer the other day.

A. can't solve

B. couldn't have solved

C. Couldn't solve

D. Weren't solved

Đáp án
B. couldn't have solved

Câu hỏi thuộc Bài tập:

MODULE 16: CONDITIONAL SENTENCES AND WISHS (Exercise 2)