________ repeatedly, the problem still appeared in the beginners’ homework.
| A．Explaining | B．Having explained |
| C．Having been explained | D．To be explained |
—Can you come up with another good idea?
—This is the best approach I can imagine __________ the work ahead of schedule.
| A．to accomplish | B．to accomplishing |
| C．accomplishing | D．accomplished |
The news spread quickly through the village _______ the war had ended, _______ made villagers wild with joy.
| A．which; that | B．that; what | C．that; which | D．what; which |
When solving the problem a second time, you’d better be more careful ________ you made a mistake.
| A．in case | B．where | C．in which | D．that |
—What do you think of the price of these computers?
—They are at least equal in price to, if not cheaper than, ________ in other companies.
| A．it | B．ones | C．that | D．the ones |
In English, certain nouns are spelt with ___ capital letter at the beginning of ______ word.
| A．a; the | B．a; a | C．the; a | D．the; the |