The________he learns,the________knowledgeable he will be.
Miss Gao was late for the meeting _______ the heavy rain.
I’d like to volunteer my spare time to _______ sick kids in the hospital.
She’s just gone out to _______ some tea. Please wait for a minute.
Look! A _______ man is crossing the street. Let’s go and help him.
—Can you help me with my physics project?—_______.