1．_______ english is ________ working language of most international organizations, international trade and tourism. a. 不填; 不填 b. the; a c. 不填; the d. the; 不填 2．thank you for your beautiful scarf. that’s _______ what i need in such a cold winter. a. exactly b. finally c. luckily d. honestly 3．email, as well as letters, ___________ an important part in daily communication. a. are playing b. have played c. is playing d. play 4．the traffic is heavy these days. i ________ arrive a bit late, so could you save me a place? a. can b. must c. need d. might 5．the gd
