It’ s suggested by experts that teenagers ____at least 30 minutes exercising, five times a week.
| A．spend | B．to spend | C．spent | D．have spent |
The ________ expression on her face suggested she was_________ when he heard the news.
| A．amazing; amazed | B．amazed; amazing |
| C．amazed; amazed | D．amazing; amazing |
It is reported that ________ European chemist called Felix Hoffmann first produced ASA which completely changed ________ man’s understanding of aspirin.
| A．a; / | B．an; a | C．the; a | D．an; / |
Will these vegetables _________ for four to five days in the fridge?
| A．be stayed fresh | B．stay fresh | C．stay freshly | D．be stayed freshly |
The audiences’ reaction made it ________ that this play was a great success.
| A．evident | B．familiar | C．relevant | D．sceptical |
More and more fast-food restaurants have ________ all over the town in the last few years.
| A．picked up | B．taken up | C．sprung up | D．put up |