Now we are studying Book One. (保持原句意思不变)
Now we are studying the ________ ________.
3 times 9 equals _2_7_ (就画线部分提问你)
______ ______ _______3 times 9________?
To walk on the wet road is quite awful for us .(保持原句意思不变)
________ is quite awful for us_______ ______on the wet road.