His letter was so confusing that I could hardly make any ______ of it.

We’d better wait more minutes. I think Jeff will come soon,

What color is that pen— It’s ________ green. It’s ________ green pen.

I won’t tell the student the answer to the math problem until he ____on it for more than an hour

Let’s go to Lihua Clothes Store.— OK. They sell all the clothes ____ very good prices.