chalk的词根是（ ）。

I want to buy three ________ of colured ________. A: box…chalk B: boxes…chalk C: boxes…chalks D: box…chalks

French chalk 并不是指法国粉笔，而是指滑石粉。（ ）

A word with this consonant sound /tʃ/ is ________. A: time B: tea C: choir D: chalk

以下哪一个不属于食物 A: chalk B: cookie C: biscuit D: chocolate

What is digital educational technology? A: Traditional classroom B: Chalkboard C: Chalk D: Computers

The white cliffs of Dover are an example of a/an ( ) chalk deposit. A: foraminiferan B: radiolarian C: heliozoan D: difflugian E: arcellian

What does the lady buy? A: a large envelope B: a small pad C: a bottle of glue D: a large box of chalk

根据回答，请选择问句。 A. What are you doing with the blackboard? B. What are you doing with the black board? ------ Writing on with a chalk

The "white chalk cliffs of Dover" are mentioned in line 14 of the passage to（） A: show where the plankton sediment first began to build up B: provide an example of a plankton buildup that scientists cannot explain C: provide all example of the buildup of plankton sediment D: indicate the largest single plankton buildup on Earth