challenge gr pr

No one wants to be looked after by an exhausted and sleep-_____ doctor.

• abandoned

• deprived

• lack

• shortage

Only a few people are successful as professional athletes, but it's worth giving it a _____.

• come

• walk

• run

• go

When you watch her dance it looks so _____.

• effortless

• tough

• feasible

• achievable

The exam was a _____ of cake.

• chunk

• slice

• piece

• lump

Four _____ ten equals six.

• subtracted from

• divided by

• multiplied by

• added to

There are a lot of hurdles to _____ before the contract can be signed.

• reinforce

• glorify

• strengthen

• overcome

The _____ of the economy has come as a surprise to some.

• pastime

• resilience

• commitment

• hurdle

Finding a solution to this problem is one of the greatest challenges _____ by scientists today.

• posed

• risen

• faced

• overcome