” ” is used to tell us that we should learn something step by step.

He has _______ for two years. Two years _______ a long time.

Father’s Day is coming. Shall we make a card for Dad—Good idea! But would you please show me ___________ as I know little about DIY

The president was so absorbed in his workthat not a sound ______

Remember this: ________ careful you are, ________ mistakes you will make— We know, Miss Gao