______ he is ill，he still works hard．（ ）
| A． |
Although |
B． |
Since |
C． |
Because |
D． |
So |
Thanks for letting us borrow your camera． We __________it to you next Monday．（ ）
A．returnB．will return
C．have returned
Do you want tea or coffee？
__________is OK． I really don't mind．（ ）
A．NeitherB．BothC．Either
Father's Day is coming．I'm thinking about ________．（ ）
A．what present I gave him
B．where we had a big meal
C．how I will give him a surprise
D．if I planned a party for him
I will have a math test tomorrow．
________（ ）
A．Good luck!B．Thank you!
C．Well done!D．The same to you!
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