Listen!Our science teacher _______________the use of the robot.
| A． |
explains |
B． |
explained |
| C． |
is explaining |
D． |
has explained |
Where's my ruler？I can't it anywhere．（ ）
| A． |
look for |
B． |
find out |
C． |
find |
Could I ask you some questions？
Yes，you ．（ ）
| A． |
can |
B． |
could |
C． |
must |
she is only seven，she can cook dinner．（ ）
| A． |
But |
B． |
So |
C． |
Though |
English is as as math．（ ）
| A． |
important |
| B． |
more important |
| C． |
the most important |
Jim's birthday is January．（ ）
| A． |
on |
B． |
in |
C． |
at |