问题
Is_______ necessary to learn another language? — I think so.
A:this
B:that
C:it
D:he
B:that
C:it
D:he
正确答案是：
同类题型
Have you finished your fashion design? – Not yet. I’ll finish it if I _______ ten more minutes.
May I listen to music here, Mr White? —Sorry, you’d better _____ it like that. [ ]
Don’t leave the baby at home _____. It’s very _____.
Chinese is becoming more and more popular. It ________ in many schools in foreign countries.