I haven’t __________ his letter yet

Sometimes I can’t help wondering what’s the matter with Tom．I can’t stand it that he often_____ me and talks with the other students around him．

I like this house with a beautiful garden in front , but I don’t have enough money to buy__________.

I haven’t bought ________ toys for my children

--Why didn't you buy it?--I ______, but I didn't have the money.

You can buy almost everything, _______ you have access to the Internet and enough money. 

I can"t forget the persons and the things ______ I met in my former company.

If only I _____ hard in the past few months! But I didn’t work hard enough and failed the math examination.

If only I ______ hard in the past few months! But I didn’t work hard enough and failed the math examination.

—This is between you and me.—I promise. I won’t tell others ______ you say I can.

—Could you lend me some money, Jack?　　—Sorry, Mike. I myself can’t earn enough to ______.

I have an urgent problem and I need to call my parents, but I’m afraid I haven’t got ______ change—only a ￡10 note. Will you do me a ______ ?