He is running fast enough.
举一反三
- He was late for the class today because he didn't run ______ catch the bus. A: enough fast to B: fast enough to C: fast enough D: enough fast
- He walked ________ fast for us ________catch up with. A: so, that B: such, that C: enough, to D: too, to
- He walked ______ fast for us ______ catch up with. A: so; that B: B. enough; to C: C. too; to
- Don't worry, sir. I'm sure I can run______ to catch up with them. A: quick enough B: enough slowly C: fast enough D: enough fast
- Don’t worry, sir. I’m sure I can run to catch up with them. A: slowly enough B: enough slowly C: fast enough D: enough fast