According to Krashen,__________refers to the gradual and subconscious development of ability in the first language by using it naturally in daily communicative situations.
A．learningB．competenceC．performanceD．acquisition

The multinational corporation is making a take-over __________for a property company.
A．applicationB．bidC．proposalD．suggestion

The criteria to determine a word's category include all the following EXCEPT__________.
A．meaningB．inflectionC．distributionD．parts of speech

It was March 5, 2013 __________ president Hugo cost his last fight in life at the age of 58.
A．thatB．whenC．sinceD．while

In speaking activities, a speaker often tries to avoid using a difficult word or structure and chooses to use a simpler one. What learning strategy does the speaker use?
A．SimplificationB．GeneralizationC．Paraphrase.D．Avoidance.

It is not easy to learn English well, but if you__________, you will succeed in the end.
A．hang aboutB．hang onC．hang upD．hang onto