---What a long queue!
--- Yeah．We ________________ up in the past few hours for tickets back home．
| A．queued | B．have queued |
| C．are queuing | D．have been queuing |
---- She looks happy. She ________ have passed the exam.
---- I guess so. It’s not difficult after all.
| A．should | B．could |
| C．must | D．might |
Scientists have to work hard to keep ________ with modern discoveries and developments.
| A．company | B．track | C．pace | D．touch |
The child was told to ________ for being rude to his uncle.
| A．excuse | B．apologize |
| C．pardon | D．thank |
The two girls had been talking in ________ low voice all ________ time during the meeting, which upset the manager.
| A．a; / | B．/; / |
| C．/; the | D．a; the |
This theory is found to be in line with the experimental results. Which of the following is similar to the underlined words?
| A．reasonable | B．materialistic |
| C．assertive | D．consistent |