He failed the mid-term examination and only then________how much time he had wasted.
A．he realized B．did he realize
C．he had realized D．had he realized
There are 30 people________in the traffic accident but the injured ________ rescued at once.
A．injuring; were B．injuring; was
C．injured; was D．injured; were
________is no possibility________she can finish the task in two hours.
A．There; that B．It; that
C．There; whether D．It; whether
When I study English, I like to put my dictionary________my reach so that I can refer to it when necessary.
A．out of B．beyond C．within D．in
The two girls are so alike that strangers find________difficult to tell one from the other.
A．it B．them C．her D．that
The manager had fallen asleep where he_______，without undressing.
A．was laying B．was lying
C．had laid D．had lied
