1. Just now we took turns the heavy box upstairs.
A. carrying B. carried C. carry D. to carrying
2. The radar sets for a long time without any trouble.
A. have been running B. have been run
C. have run D. were running
3. --- Haven't I told you that you should be home earlier?
--- Yes, but I home earlier than I usually do.
A. was coming B. will come C. came D. had come
