1 . It was the first time that we________ (admit) to ourselves that we were tired.(所给词的适当形式填空)

2 . It is worthwhile________ (discuss) the problem. （用所给词的适当形式填空）

3 . It ________ (say) that a large number of paper- cutting works by experts throughout China be on show. (所给词的适当形式填空)

4 . There is no doubt _______ he is fit for the job.（用适当的词填空）

5 . How long will it be ________ he finishes his homework? （用适当的词填空）

6 . 阅读下列材料，在空白处填入适当内容(1个单词)或填入括号内单词的正确形式。

I felt butterflies in my stomach when I started calligraphy class ten years ago. I wondered what I was doing there. At that moment, I couldn't have known that I'd just made one of the best     1    (choose) of my life.

I sat down and listened to the teacher introducing the tools of the craft. Then     2     was the first time for me that I had tried my hand. I took up the brush, using the correct gesture,     3    (dip) it in the ink, and carefully wrote "one"     4     Chinese.

Over     5     past five years, I have learned to make versions of well-known poems. Calligraphy seemed like a bridge,     6     connected me to authors from centuries past. Stroke(笔画) by stroke, word by word, I could feel their emotions, cherished my own peace and learned     7     (appreciate) my daily life.

Now, calligraphy is not just a hobby,     8    a way to remove myself from the worries of life. Rolling out the paper, I can write for a whole day. Calligraphy     9     (able) me to balance my busy schedule and live     10     (peace).