This field of scientific research remains________.
A.to be untouching B. being touched
C. to be untouched D. untouched
The teacher just took down the names of the students _______ during the exam.
A. caught cheating B. caught to cheat
C. catching cheating D. to catch cheating
______ to get a seat for the concert, he didn’t mind standing in a queue all night.
A. Determine B. To be determined
C. Determined D. Being determined
_____ from other continents for millions of year, Australia has many plants and animals not found in any other country in the world.
A. Being separated B. Having been separated
C. Having separated D. To be separated
______ at the top of the Oriental Tower, people below will look very small.
A.Stand B. Standing
C. To stand D. If you stand
The pen I _____ I_______ is on my desk, right under my nose.
A. think...lost B. thought...had lost
C. think...had lost D. thought...have lost
