I will look after my sister__ my parents are on a business trip.

A. by the time B. while C. until D. when

The students believe that the project can make a(n)__  to their community.

A. agreement B. exception C. assignment D. difference

1.The old villa next to my uncle's house__ into hotel.

A. converts B. is converting C. is going to be converted D. is going to convert

2.We__the clothes when she screamed out that she__her passport

A. were packing - had lost C. are packing - has lost B. packed - had lost D. were packing - lost

3."What is the best way to get to that cave?" "___"

A. I'm on my way the cave. B. There's heavy traffic on the roads. C. The cave isn't interesting, so you shouldn't visit it. D. You can only travel by boat.

4.We didn't use to travel by plane because it___ too expensive.

A. will be B. is C. was D. has

5.They expect that the coming years will see Phu Quoc City look set to grow___

A. sustained B. sustainable C. sustainably D. sustainability

10. - Anna: "Volunteer activities are good for teenagers." - David:

A. That's all right. C. Yes, we do this voluntarily. B. I quite agree with you. D.I don't hope

4. Time__ is a crucial skill you must have to complete all your writing tasks.

A. distribution B. consumption C. management D. effectiveness