263. --- When will that opera be ______?--- I don’t know. But I hope they can _____ next Sunday.put on; put on it B. put on; put it on C. put off; put off it D. put in; put it in
There as on why Igave in is____if I didn’t.
.No matter how fast we worked,____.
.The teache rfound ____ difficult to decide____ he would take with him to attend the conference.
Living things are dying out quickly.Let’s ask____destroying the in the pastyears.
The man who was being followed stopped from time to time____he wanted to ti ehis shoelaces.