—These Maths problems are too hard to ______. Can you help me? —There are many ways, but the most important is to try your best.
Last Sunday I had a good time _________volleyball with my frind Alan.
I bought two teddy bears. One is for my sister, ________ is for my friend Tom.
Let me _________ it.
I’m thirsty. I want to buy something _________.
Hurry up, _______ you can’t catch the first train.