Listen!Our science teacher _______________the use of the robot.
| A． |
explains |
B． |
explained |
| C． |
is explaining |
D． |
has explained |
It rained_____yesterday． I had to stay at home．（ ）
| A． |
heavily |
B． |
quietly |
C． |
hardly |
D． |
quickly |
Listen! Mr． Black ____a talk on robots in the hall．（ ）
| A． |
gives |
B． |
is giving |
C． |
will gave |
D． |
gave |
Excuse me， is there a computer room in your school？
Yes． It's _____the fifth floor．（ ）
| A． |
on |
B． |
in |
C． |
at |
D． |
to |
Hua Chenyu is very popular among teenagers． He is also _____favorite singer．（ ）
| A． |
I |
B． |
me |
C． |
my |
D． |
mine |
I believe that_____ apple a day keeps the doctor away．（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |