________(catch)intherain,hewaswettotheskin.
Iwonderifhecouldgetit________(do)beforetomorrow.
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
The director recommended that she ________ (study) more English before going abroad.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.