After the serial murder__________, there was still a case similar to it happening.
A. had been catching   B. has been caught   C. had been caught   D. has caught

We__________each other for a long time. __________we__________out a little bit tonight?
A. didn’t meet - Will - hang                             B. haven’t met - Will - hang
 C. haven’t met - Do - hang                            D. hadn’t met - Would - hang

Hurry up, Minh! I__________for 5 hours.
A. had waited           B. have wait         C. have been waiting           D. had been waiting