T0 be a“tough girl” means you are not only __________tough, but also mentally independent.
A．extremely B．partly C．physically D．practically
Beijing has struggled with smog for years，which has__________ the sun and affected the health and quality of life of millions.
A．driven away B．pushed out C．broken off D．blocked off
Between the lectures is a 20 minutes’break，__________the students can get relaxed.
A．that B．which C．where D．when
The speech from the new government is a __________ that major changes are on the way．
A．notice B．feature C．signal D．mark
一How did you manage to succeed?
一It is only after we've lost everything __________we're free to do anything.
A．when B．that C．which D．what
Mum__________ me to school as she knew it was important for me to receive education，but we were so poor then．
A．had sent B．sent C．would have sent D．would send
