What has prevented David from making a prompt reply?
举一反三
- The mechanical trouble has prevented them from finishing the task on_______.
- Pollyanna quit ballet because her artificial leg prevented her from making more progress.
- What do you imagine ______ him from going A: to prevent B: preventing C: to have prevented D: prevented
- What time is David leaving? A: have B: had C: has D: is having
- What has the writer learned from Anna? The writer has learned from Anna that ______