问题
（题文）Everyone wants to reach the top of the mountain, but all the happiness happens while you it.
A:climb
B:climbed
C:are climbing
D:have climbed;
B:climbed
C:are climbing
D:have climbed;
正确答案是：
同类题型
ontest is so easy, but you fail topass it．—I’m sorry it ______ be this way．
__ I went to the South Lake in Hanzhong, I was deeply impressed with its beautiful scenery.
She was looking for her bicycle key _______she thought she might have put it
How can they learn anything ______ they spend alltheir spare time watching television