方位介词 in/on/under/behind 的运用 — 英语填空题
题目
Lily is looking for her English book. It is not in her schoolbag, and it is not under the chair. Mum says, "Look at your desk! The computer is in front of the book." So Lily moves the computer away and finds her English book ___ the computer, just ___ the desk. (第一空填介词，第二空填介词)