— Susan, would you like to go hiking with us this afternoon?— I'd love to, but I study for a test.A. may B. have to C. can
---Sorry, I can’t work out this problem. ---Try again, please. It’s only ______ difficult.
---Dear me! What a wonderful computer! ---My grandpa bought it for my sister and me. It’s ______.
It’s _____ to teach a man fishing than to give him fish.
---Could you tell me _____? ---About two months.
It’s too noisy here. Please ask him to ____the radio a little.