One third of the class _____ agreed to be volunteers to help the aged this vocation.
| A．are | B．is | C．has | D．have |
Not until actually ________ with water shortage ________ appreciate the value of water to a region.
| A．facing; one can | B．faced; can one | C．faced; one cannot | D．facing; cannot one |
--- Shall I go over to have a chat with you this evening?
--- Nice of you! It is ________ great comfort to keep me ________ company, when I’m alone at home.
| A．a; the | B．/ ; a | C．a; / | D．the ; / |
If he takes on this work, he will have no choice but ______ an even greater challenge.＿
| A．meets | B．meeting | C．meet | D．to meet |
This restaurant wasn't that other restaurant we went to.
| A．half as good as | B．as half good as |
| C．as good as half | D．good as half as |
With so much work _______his mind , he almost broke down .
| A．fill | B．filling | C．filled | D．to fill |