I found great difficulty (solve) ______ such a problem.
举一反三
- Mary found _______extremely hard to solve the problem.
- In the US, when a problem arises, a face-to-face meeting is suggested to solve the problem.
- Mary found _______extremely hard to solve the problem. A: it B: what C: that D: this
- It doesn't matter who solve the problem；what ______ is how to solve the problem. A: counts B: applies C: stresses D: functions
- The harder I tried, __________ it seemed to solve that math problem.