"catch on to"= "catch up with".()
举一反三
- This book( ) really( ) when first published. A: wasn't; catch on B: didn't; catch up C: didn't; catch on D: wasn't; catch up
- If you_______earlier, you ____ the bus. A: got up, would catch B: should get up, could catch C: had got up, would have caught D: had got up, would catch
- They got up early in order that they ___ they first train. A: caught B: will catch C: might catch D: shall catch
- Would you mind repeating what you said, I didn’t quite ( ). A: catch at B: catch on C: catch up D: catch out
- catch up on是赶上