__________, they couldn’t solve the mystery.
A: As they tried hard
B: Tried as they hard
C: Hard as they tried
D: No matter they tried hard
A: As they tried hard
B: Tried as they hard
C: Hard as they tried
D: No matter they tried hard
举一反三
- ______, he was unable to make much progress. A: Hard as he try B: Hard as he tried C: As he tried hard D: He tried hard
- He_______ to find a job but he had no luck. A: tried hard B: tried hardly C: hardly tried
- No matter how hard he tried, she could not change her mind.
- No matter how hard I tried to explain how to operate the machine, they were still at a loss.
- The speaker tried hard to ______ the audience but left them cold.