----______has Tom been a doctor ? -----Since two years ago.
---Tom wants to know if___________ a picnic tomorrow. --- Yes. But if it _________, we will visit the museum instead.
Tan Dun won an Oscar ________ his music __________ the film Crouching Tiger, Hidden Dragon.
We will visit Shanghai this Sunday __________ it rains or it’s too cold.
---Why didn’t Jane go to John’s party? ---Because she ________.
---How was your trip? ---The ______trip was so ________ that we felt very tired.