Do you think it is worthwhile to meet the of solo travel in an extreme climate?
| A．needs | B．supplies | C．challenges | D．expeditions |
I have many books ,but _____ deals with the problem.
A none of which B none of them C call of which D all of them
The great hall was crowded with many people ,_______many children ________on their parents’ laps.
A including ,seated B including , seating C included , sat D included , sitting
The reason _____ which he wants to reason _____ then is still unknown
A With ,in B in ,with C for , with D with ,for
It was in the school _____ he had studied ______he began the important experiment.
A that ,where B in which, which C where, that D where , in which
At that time, he used to tell me _____news he got .
A what B whatever C which D whichever