Is Mr. Li in his office ?－No, he __________ in the office. He’s ill in hospital.

Look! The police ______ the food onto the bank of the river.

My girls! You are too shy. You should have more confidence in _______ . — Ok, thanks.

My car is broke .—-You may use _____first . She won’t use it .

As the intelligence of robots increases to match ________ of humans，we may use them to expand our frontiers.