What does the model have in her hands—She has ______umbrella in her right hand and_____ useful book in the other.

____________and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast.

I’m afraid that the thread will break _____ it’s the weakest

Could I use your computer for a few moments，please—________.I’m not using it myself.

an hardly boil an egg, still _____ cook dinner