Bộ 3 Đề kiểm tra Unit 8 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 3)

I’m going away for a few days. I’ll phone you ______________ I get back.

14/45

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

I’m going away for a few days. I’ll phone you ______________ I get back.

until

when

if

whether

Giải thích

Chọn B