My parents often make me ________ English for half an hour every day.
— What’s your plan for this weekend? — We will go for a picnic by the river _______ it rains.
—Why was he late for school yesterday?— He overslept. By the time he got to the bus stop, the bus ________ already ______.
—Heavy smog (雾霾 )in eastern and central China seems to get more and more serious.—I agree. Something to deal with it.
— Who is your favorite writer?— Mo Yan. I like writers _________ tell stories well.
Tom finds _________ difficult to learn Chinese well.