I don't remember who came first，but we all________the lecture.
| A．attend | B．attended |
| C．have attended | D．are attending |
The alarm ________ when the thieves got in.
| A．went off | B．went over |
| C．turned over | D．took over |
The two boys ______when climbing the mountains.
| A．got lost | B．lost |
| C．were losing | D．losing |
It ______me one hour to finish the homework.
| A．spent | B．took |
| C．cost | D．paid |
I can’t stand ___________.
| A．laugh at | B．laughing at |
| C．being laughed at | D．being laughed |
When do you think________ back to our school?
| A．will Tom come | B．Tom coming |
| C．does Tom come | D．Tom will come |