---_______do you send e-mails to your pen friend?  ------Once a month.

 -----Why ________ you come and play basketball with us?-----Because I have lots of homework to do.

Kate's dad is getting old. She will go back home to see him _____it is convenient.

–             has he lived in Canada? --Since 1998.

After you see the pictures, you will realize ______ danger the wildlife faces.

  ________ he fails the job interview ?

 ________ everybody is present and everything is ready , let’s begin our party .

 ________ you have tried it on, you can’t imagine ________ pretty the new style skirt is.

I spend much money on books _____ I am not rich.

      she is only a twelve-year-old girl,       she can speak four languages very well．

—      good time we had at the party last night!— Yes． It was         exciting party that I would never forget it．

----_______is your sister?     ---She is thirteen years old. 

---_______ does he look?        ---He looks strong.

---        can you see in the picture?        ---Some birds.

 －Your aunt often walks the dog in the morning.－Yeah,      bad weather stops her.

 Although they feel tired, _________they still go on working. 

---You look very healthy. ________do you exercise? -----I exercise three times a week. 

---__________was your vacation? ---Very good. 

 -- _____ classes are there in your school?   –Thirty. 

_______he is ill, _________he goes to work.