Many difficulties have _____ as a result of the change over to a new type of fuel.
举一反三
- Many problems have______as a result of the change over to a new type of fuel. A: risen B: arisen C: raised D: aroused
- 青书学堂: Many difficulties have _________ as a result of the economic crisis.
- The new government was ______ with many profound difficulties and called for supports from its people.
- Modern autopilots have many advantages, such as fuel economy, ease of operation.
- The big company has taken over many small ones as a result of (compete) _____ .