______is believed to be a major source of incorrect forms resistant to further instruction

The passage is mainly talking about______.A．not being a perfectionistB．details and major o

Compared ______ English, Chinese is generally believed to be more difficult to learn.A

Believe it or not, when first ______ to Europe, tomato was thought to be poisonous.A．to in

Education ______ how to survive an earthquake should be a major emphasis for all governmen

She realized that being unable to speak a foreign language was a major ________to he

According to the interview, Amy was believed to be ______ at her young age.A．carefreeB．rel