The school board listened quietly as Jack read the demands that his classmates ______ forward.
A．be putting B．had put C．were put D．have put
She may have missed the train, ______ she won’t arrive for another hour.
A．in which case B．in the case C．in any case D．in that case
— Jack, this is the third time that you have been late this week.
— Sorry, sir, but I was ______ for 15 minutes on the way here in the traffic jam.
A．held up B．put up C．taken up D．given up
Without that conversation between them, they would ______ be able to avoid mistakes.
A．in no time B．by all means C．in no way D．on the whole
The zoologist is telling the visitors how a horse’s vision differs from ______ of a human.
A．it B．one C．that D．those
This book will show the readers ______ can be used in other contexts.
A．how that they have observed B．that how they have observed
C．how what they have observed D．that they have observed
