To ___ the puzzlement of the students, the teacher explained it once again to them.
| A．explain |
| B．instruct |
| C．clarify |
| D．classify |
—Shall we go out for dinner tonight?
—______.
| A．You are right | B．It must be funny | C．That sounds great | D．Have a nice time |
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 |
Uncle George didn’t ______ until he was nearly fifty.
| A．settle down | B．put down | C．sit down | D．turn down |
Although badly hurt in the accident, the driver was ______ able to make a phone call.
| A．still | B．even | C．also | D．ever |
The weather was ______ cold that he didn’t like to leave my room.
| A．really | B．such | C．too | D．so |