Grammar: "so / such . . . that"

Her suitcase was _____ heavy that she couldn't pick it up.

• so

• such

I've never had _____ uncomfortable flight; there was lots of turbulence.

• such

• such an

This is the first time we've had __________ delay at the airport.

• a so long

• such a long

The terminal was _____ crowded that we couldn't find our gate.

• so

• such

When I was in Bangkok in January, there was __________ traffic that I missed my flight to Phnom Penh and had to buy another one.

• so much

• so many

It's _____ small airport that there are only two flights each day.

• such

• such a