Speaking __________ an important _________ _______ (起作用) learning English.

 ― _______ ________ (多久一次) do you go home to have a rest?

― We go home to have a rest _______ _______ _______ (每隔兩周).

A: A man called Li Ming is asking to see you at the gate.

B: A man who ______ _______ Li Ming is asking to see you at the gate.

A: He is so clever that he could solve the problem.

B: He is clever ______ _____ ______ the problem.

A: He is so young that he can’t join the army.

B: He is ______ young _____ ______ the army.

A: As a matter of fact, everyone wants to host the Olympic Games.

B: ______ ______, everyone wants to host the Olympic Games.

A: They started early in order to get there on time.

B: They started early _____ ______ _____ they might get there on time.

How many ___________ (獎牌) did China get in the 28^th Olympic Games?