While Nick CCTV News， someone knocked at the door．（ ）
| A． |
watched |
B． |
was watching |
| C． |
watch |
D． |
watches |
Train tickets_____online． It is convenient．（ ）
| A． |
sold |
B． |
were sold |
C． |
are sold |
D． |
have sold |
Helen is the_____person in her family． Her two elder sisters are both married．（ ）
| A． |
older |
B． |
oldest |
C． |
younger |
D． |
youngest |
In a restaurant， people usually choose food and drink from the_____．（ ）
| A． |
book |
B． |
menu |
C． |
newspaper |
D． |
magazine |
_____you smell something burning？ Go and see what's happening．（ ）
| A． |
Can |
B． |
May |
C． |
Must |
D． |
Need |
It _____dark． Shall I turn on the light？（ ）
| A． |
gets |
B． |
got |
C． |
is getting |
D． |
was getting |