It's very important us to make a plan before a new term begins．（ ）
| A． |
of |
B． |
With |
C． |
By |
D． |
for |
The door bell is ringing， please go and see _______．（ ）
A．who is itB．who it isC．who was itD．who it was
The notice says the sports meeting has been _______ till next week．（ ）
A．put onB．put downC．put offD．put up
Li Hua's parents hold different opinions on whether they should have _______ child．（ ）
A．anotherB．otherC．othersD．the other
Milk quickly goes bad _______ it is put into the fridge．（ ）
A．ifB．unlessC．whetherD．until
Father _______ goes to the gym with me although he dislikes going there．（ ）
A．neverB．hardlyC．seldomD．sometimes