They found the lecture hard___.
举一反三
- I found the lecture hard to follow Because it ___ when I arrived.
- They found the lecture hard _________. A: to be understood B: for understanding C: to understand D: to have been understood
- I found the lecture hard to follow Because it ___ when I arrived. A: was started B: has started C: started D: had started
- I found __________ hard to concentrate.
- I found hard to accomplish the task.