每天练习 英语练习

With more forests being destroyed, huge quantities of good earth ________ each year.

A. is washing away

B. is being washed away

C. are washing away

D. are being washed away


昨日习题解析：

While watching television, ____________.

A. the doorbell rang

B. the doorbell tings

C. we heard the doorbell ring

D. we heard the doorbell rings


解析：
watching television 的动作执行者是we，所以句子的主语应该是we . hear sb./sth. do  sth.表示‘听......做了某事’，要用动词原形做宾补。