The mother was excited by _______news that his son raised money for charity．（ ）
A．/B．aC．anD．the
______ will the discussion last？
______ we reach an agreement．（ ）
A．How long； Not untilB．When； Not until
C．How long，UntilD．When，Until
How did you put together the model plane so perfectly？
It's easy．I just followed the ______．（ ）
A．instructionsB．instruments
C．interviewsD．inventions
What shall we buy for Lucy as a present？
Let's buy a new bike for her．Her bike breaks down from time to time ______．（ ）
A．after allB．above allC．at allD．in all
The coach thinks ____ of Mary's sports talents， for she jumped very _____ at the sports meeting．（ ）
A．high； highB．highly； highly
C．high； highlyD．highly； high
Do you know when we _____？
I'm not sure．I will tell you about it when the time ______．（ ）
A．leave，is fixed
B．will leave，is fixed
C．leave，will be fixed
D．will leave，will be fixed