UNIT 49I. PRONUNCIATION
31. He has put the material in the wrong place. It ought ... just here but it wasn't.
a. to put
b. be put
c. to have put
d. to have been put
d
31. He has put the material in the wrong place. It ought ... just here but it wasn't.
a. to put
b. be put
c. to have put
d. to have been put
d