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 |
His pale face suggested that he ______ ill and the teacher suggested that he _______ the doctor.
| A．was, should see | B．should be, saw | C．were, had seen | D．should be, see, |
A total of 35 Chinese universities rank among the world’s 500 best in a ranking _____ by China's Shanghai Jiao Tong University on Monday.
| A．releasing | B．to release | C．release | D．released |
Well, it’s up to you, Aunt Ellen, _____ you stay or go.
| A．whether | B．what | C．that | D．if |
We’ll have to race _____ the clock to complete the work on time.
| A．beyond | B．over | C．from | D．against |
Cheer up! Never let your failures _____ trying harder.
| A．put you through | B．put you off | C．put you across | D．put you away |