Question

The solution to my problem is a long-term one which can only be tackle by official agencies.

• A. only is tackle
• B. only be tackled
• C. only tackle
• D. tackle
• E. No correction required

Answer 1

The correct option is B only be tackled

'Only be tackled' is a suitable replacement. 'Be' is followed by ${}^{\prime }{V}_3^{\prime }$ when used in the passive form.
Eg: This work can only be done by an expert.