We are at your service. Don’t _______ to turn to us if you have any further problems.
| A．desire | B．manage | C．hesitate | D．seek |
The analysis shows that plastics, particularly those that __________ fast, are contributing to the climate change.
| A．break off | B．break down |
| C．break up | D．break out |
--- Is this company ______ your elder sister once worked in?
---- Yes, it is.
| A．where | B．which | C．the one | D．that |
The committee is discussing the problem right now. It will _____ have been solved by the end of next week.
| A．eagerly | B．hopefully | C．immediately | D．gradually |
Mr Wang’s commitment leaves him held in deep ____ by his students and also wins their respect.
| A．appreciation | B．affection | C．adaptation | D．adoption |
Not until_______ home ______he had had his wallet stolen.
| A．he returned, that he found | B．he returned, did he find, |
| C．did he return, he found | D．did he return,, did he find |