中国大学MOOC: 给一个Surface对象s，其方法s.fill(a)用于填充，其中a是什么含义？

Fill in the blank with “a, an, the, 不填 ”.There's ________ "u" and ________ "s" in ________work "use".

<p>Does a French need to fill in the UK's landing card?</p>

Fill in the blank with the proper form of the word given in the bracket.She’s totally ______________ to shopping! (addict)

Fill in the blank with the proper words or words.This is a program that's aimed ____ teenagers. A: with B: at C: in

Fill in the blank to make the following statement true: "In a semiconductor material, account(s) for mostly of the current

Fill in each blank with “turn”, “stand”, “engage” or “grow” in the word’s proper form.The idea for this book____________ out of the author’s journey to Tibet.

Fill in the blank with the proper form of the word given in the bracket.She’s already written three ______________ books. (best-seller)

Fill in each blank with the proper form of the word given in brackets.Nothing can __________ (replacement) a mother’s love.

That's what a lot of people_________ passion. A: fill up B: result in C: respond to D: refer to as