Question

英语：填空题。全部！

Answer 1

二、

1. hasn't visited

2. Have ,heard

3. has worked

4. has had

5. knows

三、

1. paid

2. have spent

3. cost

4. took
   

Answer 2

has worked(since用完成时)
has bought(for用现完)
knows（not only but also就近原则，是否三单看较近的teacher）
paid
have spent
cost
took

Answer 3

1. has visited

2. Have ...heard

3. has worked

4. has had

5. knows

三.1.paid

     2.have ...spent

     3.costs

     4.took

Answer 4

二楼正解 第四个是has bought

Answer 5

1. hasn't visited

2. Have ,heard

3. has worked

4. has had

5. knows

三、

1. paid

2. have spent

3. cost

4. took