Not knowing how to grow crops,the primitive people had no ______ but to gather the fruit and hunt animals for food.
________ he works hard, I don't mind when he finishes the experiment.
his play, , is very wonderful: there are many interesting characters in it.
Quantities of water ________for cooling in the only one of the factories that ________steel.
They were surrounded by the enemy, but they ________at last from the village.
—How do you find Qingdao, Mary?—It’s a beautiful seaside city. I have ________it for my next holiday.