All the listeners were surprised at what the traveler had ______in the last ten months.
—Your colleague is speaking English with fluency. —It's no wonder.She ____ in the UK for a year as a visiting professor
The government must be very _____ about setting policies and make no decision until they are quite sure it is the right one.
She says that she'll have to close the shop ________ business improves.
While ______ himself in the newspaper in a cafe , he got his pocket picked.
— Can you explain ____ you have been late for school several times this term? — Sorry, but it is the first time that I have been late this week.