My parents saw a............................ play last night.

A.   three - act               B. three - acts            C. three acts            D. three act

Giải thích: Danh từ ghép.

These books belong to you. I’m sure they are............................. .

A. you’re B. your’s C. yours D. your

 Geogists discovered that s waves................only through solid matter , while p waves  can be bound  travelling  through  solids or liquids.

A. travelling

B. to travel

C. that travel

D. travel

Her family lives on the third FLOOR of  HALG Tower

Cấu trúc: live on the first/second/third... floor.

Fill in the blank with one appropriate preposition to complete the following sentence :

Your writing is so bad, I can't make out what you've written.

Fill in the blank with one appropriate preposition to complete the following sentence :

You have to put away your toys and go to bed. It's too late.

Fill in the blank with one appropriate preposition to complete the following sentence :

I'm very grateful to you for your invaluable help.

Fill in the blank with one appropriate preposition to complete the following sentence :

What a pity! We left him without saying goodbye.

Fill in the blank with one appropriate preposition to complete the following sentence :

Clean air provides us with a healthy supply of oxygen.

Cấu trúc: provide s.o with sth.

Ultimately, you'll have to make the decision yourself.

A. Consequently  B. Basically  C. Generally  D. Finally