写出下列单词的三单、过去式、过去分词及现在分词borrow  2.chat  3.die  5.have  6.hear  7.marry  8.push  9.pay  10.open  11.refer  12.read  13.sing  14.study  15.write选词填空look  after  look  for  loof  around  look  out  look  over  look upThe  doctor   () Mr  green  carefully  yesterdayYou  must  () yourself  and  keep  helthyI  havo  to  (0the  world  in  my  dictionary()  and  there  is  a  snake  on  the  roodsideThe  detective  (0  and   finally he  ()  Bob's  eyes  strain

1. borrows  borrowed  borrowed  borrowing

2. chats    chatted  chatted    chatting

3. dies     died   died    dying

4. has   had had  having

5. hears   heard  heard  hearing

6. marries   married  married   marrying

7. pushes  pushed pushed   pushing

8. pays   paid  paid paying

9. opens  opened  opened  opening

10. refers  referred  referred  referring

11. reads read read  reading

12. sings   sang sung   singing

13. studies   studied studied  studying

14. writes   wrote  written    writing

     

    
    

    1.looked  over

    2.look after 

    3.look up

    4.look out

    5                looked around    .looked  for  

borrows  borrowed  borrowed  borrowing
chats    chatted  chatted    chatting
dies     died   died    dying
has   had had  having
hears   heard  heard  hearing
marries   married  married   marrying
pushes  pushed pushed   pushing
pays   paid  paid paying
opens  opened  opened  opening
refers  referred  referred  referring
reads read read  reading
sings   sang sung   singing
studies   studied studied  studying
writes   wrote  written    writing
 


1.looked  over
2.look after 
3.look up
4.look out
5                looked around    .looked  for