Sec 2 Unit 1

We must .............. our immune system to keep healthy.

• boast

• burst

• paste

• boost

The immune system sends ............. to find the virus that attacks your body.

• sales

• cells

• seals

• soils

Follow rules of cleanliness to avoid being .................

• infected

• protected

• rejected

• injected

A lot of children .................. badly to antibiotics.

• recycle

• retrain

• refresh

• react

You should learn how to ............... CPR.

• take

• make

• reform

• perform

................. is a synonym to very serious.

• Serve

• Simple

• Severe

• Safe

Be careful, it is easy to get a \ an ................... of COVID-19.

• infection

• protection

• injection

• refilection

King Lear intended to give a .................. of his kingdom to each daughter.

• thirdly

• thirteen

• third

• three

The nose is the ............. which helps us breathe, speak and smell things.

• muscle

• organ

• cell

• immune

COVID- 19 is the ........... which has caused the pandemic this year.

• microbe

• bacteria

• Virus

• illness