I’m afraid I’ll fail in the exam.— ________. It won’t be so bad.

the door, he found his keyswere nowhere

o cause people some health problems, infact far more serious _____ than computers do

Most Chinese students hope ________ homework. Ifso, they can have much ______time for their hobbies.

下列各句中加点的成语使用恰当的一项是(　　)