WE ASKED THE LIBRARIAN FOR THE BOOK THE PROFESSOR (RECOMMEND) WHILE...

Tiếng Anh ĐỀ LUYỆN THI HSG CẤP TỈNH – ĐỀ 16 MÔN TIẾNG ANH POT

7. We asked the librarian for the book the professor (recommend) while he (give) his lectures on the history of World War II.