My sister was very afraid all the way because it was the first time she ______ a car.

The farmer was very thankful to the doctor _________ saved his son．

Don’t ______ /l?k/out of the window in class.

I don’t know the answer _____ the question. [ ]

David, how old is your father this year?—______. And we just had a special party for his _____ birthday last weekend.