—Your colleague is speaking English with fluency.—It's no wonder.She ____ in the UK for a year as a visiting professor
Some researchers believe that there is no doubt _______ a cure for AIDS will be found.
To write his paper, he tried hard to collect _______ information as he could.
Don’t worry. You ________ have that book tomorrow.
Nearly all educators believe that a challenging situation can often _______ the best qualities of a person.
He found his son _______ inside the lift, _______ very worried.