Nobody but doctors or nurses and those____ by Dr.Hu ____ to enter the patient’s room.
The e-mail, as well as the telephone, ______ an important part in daily communication.
Jumping out of ______airplane at ten thousand feet is quite _____exciting experience.
What they need ______ enough money, while what we need ______ enough workers.
—Please tell Nana she has won the first prize in the teaching skill contest in April. —_________! She never did so well before.
The serious situation made it possible for laws preventing pollutions_________in many countries.