I didn't see you at the meeting yesterday．Why？
I ________ for an important telephone call at that moment．（ ）
A．waitB．waited
C．am waitingD．was waiting
How is your grandma？
She's fine．She used to____TV at home after supper．But now she is used to___out for a walk．（ ）
| A． |
watch；go |
B． |
watching；go |
| C． |
watching；going |
D． |
watch；going |
Rick____a lot about Chinese culture since he came to China．（ ）
| A． |
has learned |
B． |
will learn |
| C． |
learns |
D． |
learned |
All passengers _____go through safety check before they take a plane．（ ）
| A． |
can |
B． |
may |
C． |
must |
D． |
ought |
If it_____tomorrow，we won't climb the Doupeng Hill．（ ）
| A． |
will rain |
B． |
rains |
C． |
is raining |
D． |
rain |
_____Tony_____Frank likes the CD．They think the music is too noisy．（ ）
| A． |
Not only；but also |
B． |
Either；or |
| C． |
Neither；nor |
D． |
Both；and |