The police need some more evidence ________they can make a conclusion

English is spoken____ a second language in many countries. Many Chinese learn it ____ differentways.

Sam, my iPhone is in my bedroom. Could you____________ it for me? — No problem.

acertain doubt among the people as to the practical value of the project.

－Excuse me, could you tell me ________－There’s an e-shop next to the bookshop. You can go there.