It comes as ______ surprise that ______ dream of spacetravel will soon come true.

Shall we go out for a walk—SorryI’m too busyto forthe moment

The students ________ games after class. They ______ volleyball over there now.

the opening ceremony, “Miss Smile”has won the hearts of Chinese Internet users after being caught _____ the samesmile for nearly 20 minutes

Is the new job a real challenge for him—Well, _______ difficulties he meets，I believe he will never lose heart.