I can think of many cases ______ students obviously knew a lot of English words and expressions but couldn't write a good essay.
________ cave that George has discovered in his lifetime is near the Alps.
“You’ve left the light on.” “Oh, so I have. _____ and turn it off.”
.Mr. Smith ________ me to buy several ________ eggs for the dinner.
Residents ________ not to go out alone or to take part in any groups during the period of recent terrorist activities.
The father, along with his four children _______ Hangzhou. When they will be back ______ fixed.