. Because her family is too poor, she has to ____ on her uncle for further education in the university.
| A．keep | B．feed | C．have | D．Depend |
Human beings are different from animals _______ 
they can use language as a tool to communicate.
| A．in that | B．for that | C．in which | D．for which |
______ is often the case with elder people, my grandma talked about my new hairstyle for at least 50 minutes nonstop.
| A．That | B．Which | C．As | D．It |
Eugene’s never willing to alter any of his opinions, so it’s no use ________ with him.
| A．to argue | B．arguing |
| C．argued | D．having argued |
Charlie ______ be really difficult at times even though he’s a nice person in general.
| A．shall | B．should | C．can | D．must |
It was only after I came across that matter_______ how important it was to master a foreign language.
| A．did I realize | B．had I realized |
| C．that I realized | D．when I realized |