The children have some problems ___ to the top of the mountain.为什么是getting
问题描述:
The children have some problems ___ to the top of the mountain.
为什么是getting
答
have problem (in) doing sth
答
因为get to the top of the mountain是问题所在。所以用ing形式。当中省略了that
答
have problem in (doing) sth:做什么什么事有困难.
get to the top of the mountain:爬上山顶