1 . ________ all the guests are here, why don’t we begin the party at once?

A．Although

B．As soon as

C．After

D．Now that

2 . You are an adult. You should not ask your parents for money. (保持原句意思)
________ ________ you are an adult, you should not ask your parents for money.

3 . ______ everyone is here, let’s start for the Science Museum.

A．Though

B．After

C．Now that

D．Before

5 . 既然你不想加入我们，你可以离开了。
________ you don’t want to join us, you may leave.

6 . 既然每个人都到了，我们开始上课吧。
________ ________ everyone is here, let’s start our lesson.

7 . _________ the big forest fire has already been under control, no more firefighters will be sent there.

A．Now that

B．While

C．Even if

D．Though

8 . ________ you have been to America many times, you must know a lot about its culture.

A．Before

B．Now that

C．Although

D．When

9 . 既然你已经完成了家庭作业，你就可以打篮球了。
________ you have finished your homework, you can play basketball.

10 . here, discussion, now that, start, our, is, let’s, everyone（连词成句）
______________________________.