He must be helping the old man to water the flowers，________？
| A．is he | B．isn't he |
| C．must be | D．mustn't he |
. Although Lucy was slimming, she found cream cakes quite _____.
| A．irregular | B．inevitable |
| C．incredible | D．irresistible |
. In order to _____ the rising production costs, the subscription rates have been increased.
| A．add up to | B．look up to | C．cut short | D．keep up with |
. Your essay is quite good: just _____ it _____ with a few illustrations and quotations.
| A．put .. up | B．touch .. up |
| C．cut .. out | D．write .. off |
I hope my teacher will take my recent illness into _____ when judging my examination.
| A．regard | B．account | C．thought | D．observation |
. There are three basic ways of _____ language to writing, and all known graphic systems use one or a combination of these.
| A．committing | B．attaching | C．comparing | D．relating |