31. What do you think is better, reading slowly or reading quickly?

37. I helped out with the housework and _________ (contribute) to the groceries.

6. ______ by strong snowstorms, the area faced severe water and electricity shortage.

45. Now there is a resurgence (复苏) in its _________ (受欢迎) in the UK and it is available to anyone who can afford it.

3.我国学校德育包括的三个基本组成部分是( )。

11. One-third of the area ______ covered with green trees. About seventy percent of the trees ______ been planted.

14. Although he thought he was helping us prepare the dinner, he was actually ______ the way.

34. Why should we must read instructions slowly?

35. How can we become a good reader?

23.

44. Extreme weathers like droughts and heavy storms will happen at a higher _________ (频率).

21.