--Sorry, I overslept. I forgot to set the alarm.
--Your clock ________. Perhaps you should buy a new one.
| A．never worked | B．never works |
| C．had never worked | D．is never working |
I want to be a teacher when I grow up．
Work hard，_________ your dream will come true．（ ）
| A． |
or |
B． |
but |
C． |
though |
D． |
and |
What a valuable book it is!
So it is．It's worth ________．（ ）
| A． |
reading |
B． |
seeing |
C． |
watching |
D． |
looking |
Is that boy Tom？
It ___________ be Tom．He has gone to his hometown to visit his grandparents．（ ）
| A． |
can |
B． |
can't |
C． |
must |
D． |
mustn't |
There is something ___________ in today's newspaper．
Really．Wow，great!（ ）
| A． |
interesting |
B． |
interested |
| C． |
interest |
D． |
interests |
How long can I _________ this book？
Five days．But you must return it on time．（ ）
| A． |
borrow |
B． |
lend |
C． |
keep |
D． |
kept |