The mobile phone has changed people’s life a lot ________ it was invented.
| A．until | B．since |
| C．before | D．after |
It was great in the end ______ we had a terrible time at the beginning．（ ）
| A． |
if |
B． |
unless |
C． |
when |
D． |
although |
The coffee is finished!
Oh，sorry! I ______ to the shop to get some．（ ）
| A． |
am going |
B． |
was going |
C． |
went |
D． |
have gone |
Tina ______ drives to work．But today she drives because of the rain．（ ）
| A． |
always |
B． |
often |
C． |
sometimes |
D． |
hardly |
David， ______you please sweep the floor and take out the trash？（ ）
| A． |
Could |
B． |
may |
C． |
might |
D． |
must |
﹣ ﹣Would you please tell me ______？
﹣﹣It's Mr． Black's．（ ）
| A． |
when the robot was bought |
| B． |
who the robot belongs to |
| C． |
why the robot was made |
| D． |
which city the robot was taken to |