We must keep our room clean. Dirt and disease go _____, you know.
| A．from time to time | B．hand in hand |
| C．step by step | D．one after another |
She has little chance of getting the job, for _______ people have applied for it.
| A．a great many of | B．a great deal of | C．a large number of | D．a large amount of |
Only when I left my parents for Italy _______ how much I loved them.
A．I realized |
B．I had realized | C．had I realized | D．did I realize |
I don’t like to go to the concert. I have no interest in it; _______, I have lots of work to do.
| A．however | B．beside | C．therefore | D．besides |
I bought a dress for only 10 dollars in a sale; it was a real _______.
| A．exchange | B．bargain | C．trade | D．business |
I was enjoying my dinner and talking to my American friend Janice at the table _______ I noticed people staring at us.
| A．until | B．as | C．when | D．while |