Although synthetic gemstones are similar in quality to natural stones, people_____ natural gas.

Seem এর পরে infinitive হয় , সেহেতু এখানে seem to prefer সঠিক উত্তর|
- Although synthetic gemstones are similar in quality to natural stones, people seem to prefer natural gas.
- do seem prefer এবং seem prefer অপশন দুটিতে to নেই |

Source: Advanced Learner's Grammar and Composition by Chowdhury and Hossain