Why don’t you bring ____ to his attention that now students are bearing too heavy a learning load?A. it B. this that D. what
______________ with the sun, the earth is not big at all.
The little boy is dirty from head to foot because he ___ in the mud all morning.
Her ________ look suggested that she was very _______ with the answer.
This book is well worth _______. Would you like to buy one?
I have bought two ball pens , _______ writes well.