1 . 他从田间回来后就一直在流汗。
He __________ since he returned from the fields.

2 . 我正打算告诉你这件事，这时你打电话来了。
I __________ you about this when you gave me a ring.

3 . He __________an important document when the boss entered.
老板进来时他假装正在看一份重要的文件。

4 . 是否一起来由你决定。
It’s __________you whether to come along.

5 . In another letter, Father Christmas_________ _________   (抱怨) how he could not stop his helpers playing games with the toys instead of wrapping them up. (根据汉语提示完成句子)

6 . “World Trade Organization” can be ________ ________ ________ WTO. (称作，叫作) （根据汉语提示完成句子）