________ not to miss the flight at 15：20，the manager set out for the airport in a hurry.
| A．Reminding | B．Reminded |
| C．To remind | D．Having reminded |
Practice speaking English as often as possible and _____your spoken English will improve.
| A．fluently | B．gradually | C．briefly | D．entirely |
Our neighbor offered to look after our baby yesterday when we were busy, _____is often the case.
| A．it | B．that | C．which | D．as |
---How long has your brother been working in this factory?
---_____he dropped from school in 2010.
| A．When | B．Until | C．Since | D．Before |
I am very grateful to my high school teachers, without _____help I wouldn’t be so excellent.
| A．whom | B．their | C．which | D．whose |
Measures _____to stop housing prices from rising too fast, but it remains to be seen whether they still work.
| A．are taking | B．had been taken | C．have taken | D．are being taken |