【题目】—Do you __________(介意) booking a high-speed train ticket online for me?

【题目】Sam’s uncle is kind enough to donate __________(血) to people in need many times a year.

【题目】---Are those your friends?

【题目】Signs are put around the park to warn people not to __________(摘) flowers.

【题目】—The books are so nice, which one can I take?

【题目】There _________ a great concert in the theater next Saturday evening.

【题目】There is _______"u" in the word "bus".

【题目】—________ these shorts? —They're five dollars.

【题目】—If you have any trouble, please call me.

【题目】We will go to Tian’anmen Square to watch the raising of national flag if it _________ tomorrow.