问题
______people travel every year— Perhaps when we are talking about it. More than 100 planes have taken off around the world.
A:How many
B:How much
C:How long
D:How often;
B:How much
C:How long
D:How often;
正确答案是：
同类题型
Why do you like music so much– It has the great_____ to change people’s lives.
ents want me to take_________mathslessons at the weekend, but I want to play and have fun.
sorry, I did not catch you.— ______ repeat the sentence
He is so careless that he always ______his school things at home
It was wrong to cut down the old tree which dates back to 1915, _______ the reason．