We drove to the airport to meet an expert from Germany, about 50 years old, his hair ________.
A．was completely grey B．be completely grey
C．to be completely grey D．completely grey
Was it from the lake ________ he often went fishing ________ he saved the drowning girl?
A．that; that B．where; where C．where; that D．that; where
I have ________ French. What about you?
A．many difficulties to learn B．a few troubles in learning
C．quite a little difficulty to learn D．a great deal of trouble learning
I ________ with my grandma because my parents have gone abroad for further study.
A．stayed B．am staying C．have stayed D．was staying
How can they learn much ________ they spend so much time playing computer games?
A．although B．when C．till D．until
Cars do cause us some health problems, in fact, far more serious ________ than mobile phones do.
A．one B．ones C．it D．those
