If you are invited to any special occasion such as a wedding or a celebration, you’ll have to be ____ dressed.

China needs to strike a balance between maintaining a ______ fast and stable development and economic structural adjustment. 

I have little doubt about his competence; ______, he is well-qualified for the job. 

 I can’t tell you the exact time when I will get there. ____, I’ll be there as early as I can.

Since Tom ___downloaded a virus into his computer, he can not open the file now．