【题目】-- Will you go camping with us, Bob? -- I'd love to, but I ______ study for the test.

【题目】A smile costs , but gives much, so always keep smiling!

【题目】She looked behind from time to time ________ she went in the dark.

【题目】The boys ____________ from America like China

【题目】Could you please tell me _________?

【题目】Don't keep _________ when you are asked some questions in class.

【题目】_________awful day it is!

【题目】Don't trouble your brother. He _________ on a new computer program.

【题目】The Bund looks _______beautiful at night that it attracts a lot of tourists every day.

【题目】---Is_______here？