He moved to a foreign country, where he was obliged to ________ himself to the new habits and customs.
| A．adapt | B．adopt | C．fit | D．suit |
All the task ______ ahead of time, they decided to go on holiday for a week.
| A．had been finished | B．were finished | C．having been finished | D．been finished |
—This wall of air is an effective answer to the problem and it ______ work.
—But it is a question to put such a wall of air around the statue.
| A．may | B．must | C．should | D．could |
—How do you think I should receive the reporter?
—______ you feel about him, try to be polite.
| A．How | B．What | C．Whatever | D．However |
Examination compositions, together with most business letters and government reports, are the main situations ______ formal language is used.
| A．in which | B．on which | C．of which | D．for which |
—Who is making so much noise in the garden?
—______ the children.
| A．There are | B．They are | C．That is | D．It is |