Such animals as South China tigers are believed __________ ., for we've had no track of them for ages.
A．becoming extinctB．to become extinctC．to have been extinctD．having been extinct

Teaching activities must be based on the students' cognitive development level and theexistingexperiencedknowledge,thus,students'personal knowledge,students'Lifeworld and__________ are also the important curriculum resources except textbook.
A．game activitiesB．labour activitiesC．attitudesD．direct experience

What's the teacher doing by saying "Who wants to have a try"?
A．Controlling discipline.B．Giving prompt.C．Evaluating students' work.D．Directing students' attention to the lesson.

Which of the following statements is NOT a way of consolidating vocabulary?
A．Defining.B．Matching.C．Gap-filling.D．Labeling.

The ambiguity in "My friend drove me to the bank." is caused by__________.
A．lexical itemsB．a grammatical structureC．homonymyD．polysemy

Which of the following activities is the most suitable for group work?
A．Guessing game.B．Story telling.C．Information gap.D．Drama performance.