eacher praised me for ________ progress I’d made, which was ________ great encouragement to me.

Her mother_________ having read the letter when Mary found the envelope open.

Let’s buy a birthday cake ________ hisbirthday present ________ the cake shop.

I went along thinking nothing ___________, just looking at things around me

_____ with so much trouble,I am afraid, they will fail to complete the task on time [ ]