Fill the blanks with the correct forms of the words in brackets.

It is said that water collected from the local streams is

to drink.

 (safe)

Choose the best answer to complete the sentences below.

It’s so _____________ to send a letter from my village. The nearest post office is miles away.

Choose the best answer to complete the sentences below.

My 6-year old brother really enjoys ___________ in the rain, which is sometimes dangerous.

Choose the best answer to complete the sentences below.

I know she has worked  much_____________ this semester than she did last semester.

Choose the best answer to complete the sentences below.

She prefers _______ with real people to _______ someone virtual on the Internet.

Choose the best answer to complete the sentences below.

Not many people can explain the ______________ of the customs and traditions at Tet.

Choose the best answer to complete the sentences below.

In my family, children __________ permission before leaving the dining table.

Choose the best answer to complete the sentences below.

He is very studious. He always________ late at night.