Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

We might have robots _____________ us with household chores.

A. help

B. to help

C. helps

D. to helping

Đáp án
B. to help

Câu hỏi thuộc Bài tập:

E6- GS- Unit 10: Test for unit