---National Day is coming. What are going to do during the _____ holiday?---I will have a trip with my family.
--I will go to Beijing for a visit with my family during the long holiday of May. ---______.
---Who is the tallest boy? ---It ______ be John. John is of medium height.
These young trees must ______.
I found ______ not very difficult to keep away from the A/H1N1 Flu.
A tourist will easily lose his way in Beijing ______ he has a map or a guide.