IV. Choose the best option to complete the sentences by circle the letter A, B, C or D.

Câu hỏi

If the home robots _ out of battery, they __ charge themselves with solar energy.

A. run – will

B. runs - should

C. go - run

D. go - will

Đáp án
A. run – will

Câu hỏi thuộc Bài tập:

If the home robots _____ out of battery, they ______ charge themselves with solar energy.