All flights were cancelled ________ the thick fog.
A.because
B.due to
C.until
D.in spite of

As a head teacher you must have a _______ of responsibility for the learning of all students.
A.sense
B.spirit
C.lots
D.concept

If you miss a lot of classes, it's very difficult to _______ .
A.run off
B.fall behind
C.wait up
D.catch up

Women represent _______ of the workforce in many sectors.
A.the quantity
B.the number
C.the majority
D.lot

The barber has cut my hair.
A.My hair has already been cut now.
B.I've got to have the barber cut my hair.
C.My hair has become shorter and shorter.
D.I've had my hair cut.

A.apology
B.confidence
C.polite
D.permit

A.chore
B.machine
C.sugar
D.chef

A.explained
B.jumped
C.missed
D.walked

Aquatic sports help to improve mood states and reduce the risk of many serious disease.
A.opportunity
B.ability
C.result
D.threat

Lan: "Do you mind if I turn on the fan?" Nam:" __________”
A.Not at all
B.Not enough
C.Not for me
D.Never mind